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linux-stable/fs/xfs/libxfs/xfs_rtbitmap.h

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xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#ifndef __XFS_RTBITMAP_H__
#define __XFS_RTBITMAP_H__
xfs: move RT bitmap and summary information to the rtgroup Move the pointers to the RT bitmap and summary inodes as well as the summary cache to the rtgroups structure to prepare for having a separate bitmap and summary inodes for each rtgroup. Code using the inodes now needs to operate on a rtgroup. Where easily possible such code is converted to iterate over all rtgroups, else rtgroup 0 (the only one that can currently exist) is hardcoded. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
#include "xfs_rtgroup.h"
xfs: consolidate realtime allocation arguments Consolidate the arguments passed around the rt allocator into a struct xfs_rtalloc_arg similar to how the btree allocator arguments are consolidated in a struct xfs_alloc_arg.... Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:54:19 +00:00
struct xfs_rtalloc_args {
xfs: move RT bitmap and summary information to the rtgroup Move the pointers to the RT bitmap and summary inodes as well as the summary cache to the rtgroups structure to prepare for having a separate bitmap and summary inodes for each rtgroup. Code using the inodes now needs to operate on a rtgroup. Where easily possible such code is converted to iterate over all rtgroups, else rtgroup 0 (the only one that can currently exist) is hardcoded. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
struct xfs_rtgroup *rtg;
xfs: consolidate realtime allocation arguments Consolidate the arguments passed around the rt allocator into a struct xfs_rtalloc_arg similar to how the btree allocator arguments are consolidated in a struct xfs_alloc_arg.... Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:54:19 +00:00
struct xfs_mount *mp;
struct xfs_trans *tp;
xfs: cache last bitmap block in realtime allocator Profiling a workload on a highly fragmented realtime device showed a ton of CPU cycles being spent in xfs_trans_read_buf() called by xfs_rtbuf_get(). Further tracing showed that much of that was repeated calls to xfs_rtbuf_get() for the same block of the realtime bitmap. These come from xfs_rtallocate_extent_block(): as it walks through ranges of free bits in the bitmap, each call to xfs_rtcheck_range() and xfs_rtfind_{forw,back}() gets the same bitmap block. If the bitmap block is very fragmented, then this is _a lot_ of buffer lookups. The realtime allocator already passes around a cache of the last used realtime summary block to avoid repeated reads (the parameters rbpp and rsb). We can do the same for the realtime bitmap. This replaces rbpp and rsb with a struct xfs_rtbuf_cache, which caches the most recently used block for both the realtime bitmap and summary. xfs_rtbuf_get() now handles the caching instead of the callers, which requires plumbing xfs_rtbuf_cache to more functions but also makes sure we don't miss anything. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 17:13:22 +00:00
struct xfs_buf *rbmbp; /* bitmap block buffer */
struct xfs_buf *sumbp; /* summary block buffer */
xfs_fileoff_t rbmoff; /* bitmap block number */
xfs_fileoff_t sumoff; /* summary block number */
xfs: consolidate realtime allocation arguments Consolidate the arguments passed around the rt allocator into a struct xfs_rtalloc_arg similar to how the btree allocator arguments are consolidated in a struct xfs_alloc_arg.... Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:54:19 +00:00
};
xfs: create a helper to convert rtextents to rtblocks Create a helper to convert a realtime extent to a realtime block. Later on we'll change the helper to use bit shifts when possible. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:32:54 +00:00
static inline xfs_rtblock_t
xfs_rtx_to_rtb(
xfs: make RT extent numbers relative to the rtgroup To prepare for adding per-rtgroup bitmap files, make the xfs_rtxnum_t type encode the RT extent number relative to the rtgroup. The biggest part of this to clearly distinguish between the relative extent number that gets masked when converting from a global block number and length values that just have a factor applied to them when converting from file system blocks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:15 +00:00
struct xfs_rtgroup *rtg,
xfs: create a helper to convert rtextents to rtblocks Create a helper to convert a realtime extent to a realtime block. Later on we'll change the helper to use bit shifts when possible. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:32:54 +00:00
xfs_rtxnum_t rtx)
{
xfs: make RT extent numbers relative to the rtgroup To prepare for adding per-rtgroup bitmap files, make the xfs_rtxnum_t type encode the RT extent number relative to the rtgroup. The biggest part of this to clearly distinguish between the relative extent number that gets masked when converting from a global block number and length values that just have a factor applied to them when converting from file system blocks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:15 +00:00
struct xfs_mount *mp = rtg_mount(rtg);
xfs: make xfs_rtblock_t a segmented address like xfs_fsblock_t Now that we've finished adding allocation groups to the realtime volume, let's make the file block mapping address (xfs_rtblock_t) a segmented value just like we do on the data device. This means that group number and block number conversions can be done with shifting and masking instead of integer division. While in theory we could continue caching the rgno shift value in m_rgblklog, the fact that we now always use the shift value means that we have an opportunity to increase the redundancy of the rt geometry by storing it in the ondisk superblock and adding more sb verifier code. Extend the sueprblock to store the rgblklog value. Now that we have segmented addresses, set the correct values in m_groups[XG_TYPE_RTG] so that the xfs_group helpers work correctly. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:33 +00:00
xfs_rtblock_t start = xfs_group_start_fsb(rtg_group(rtg));
xfs: make RT extent numbers relative to the rtgroup To prepare for adding per-rtgroup bitmap files, make the xfs_rtxnum_t type encode the RT extent number relative to the rtgroup. The biggest part of this to clearly distinguish between the relative extent number that gets masked when converting from a global block number and length values that just have a factor applied to them when converting from file system blocks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:15 +00:00
xfs: use shifting and masking when converting rt extents, if possible Avoid the costs of integer division (32-bit and 64-bit) if the realtime extent size is a power of two. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:40:11 +00:00
if (mp->m_rtxblklog >= 0)
xfs: make RT extent numbers relative to the rtgroup To prepare for adding per-rtgroup bitmap files, make the xfs_rtxnum_t type encode the RT extent number relative to the rtgroup. The biggest part of this to clearly distinguish between the relative extent number that gets masked when converting from a global block number and length values that just have a factor applied to them when converting from file system blocks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:15 +00:00
return start + (rtx << mp->m_rtxblklog);
return start + (rtx * mp->m_sb.sb_rextsize);
}
xfs: use shifting and masking when converting rt extents, if possible Avoid the costs of integer division (32-bit and 64-bit) if the realtime extent size is a power of two. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:40:11 +00:00
xfs: make RT extent numbers relative to the rtgroup To prepare for adding per-rtgroup bitmap files, make the xfs_rtxnum_t type encode the RT extent number relative to the rtgroup. The biggest part of this to clearly distinguish between the relative extent number that gets masked when converting from a global block number and length values that just have a factor applied to them when converting from file system blocks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:15 +00:00
/* Convert an rgbno into an rt extent number. */
static inline xfs_rtxnum_t
xfs_rgbno_to_rtx(
struct xfs_mount *mp,
xfs_rgblock_t rgbno)
{
if (likely(mp->m_rtxblklog >= 0))
return rgbno >> mp->m_rtxblklog;
return rgbno / mp->m_sb.sb_rextsize;
}
static inline uint64_t
xfs_rtbxlen_to_blen(
struct xfs_mount *mp,
xfs_rtbxlen_t rtbxlen)
{
if (mp->m_rtxblklog >= 0)
return rtbxlen << mp->m_rtxblklog;
return rtbxlen * mp->m_sb.sb_rextsize;
xfs: create a helper to convert rtextents to rtblocks Create a helper to convert a realtime extent to a realtime block. Later on we'll change the helper to use bit shifts when possible. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:32:54 +00:00
}
static inline xfs_extlen_t
xfs_rtxlen_to_extlen(
struct xfs_mount *mp,
xfs_rtxlen_t rtxlen)
{
xfs: use shifting and masking when converting rt extents, if possible Avoid the costs of integer division (32-bit and 64-bit) if the realtime extent size is a power of two. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:40:11 +00:00
if (mp->m_rtxblklog >= 0)
return rtxlen << mp->m_rtxblklog;
xfs: create a helper to convert rtextents to rtblocks Create a helper to convert a realtime extent to a realtime block. Later on we'll change the helper to use bit shifts when possible. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:32:54 +00:00
return rtxlen * mp->m_sb.sb_rextsize;
}
xfs: create a helper to compute leftovers of realtime extents Create a helper to compute the misalignment between a file extent (xfs_extlen_t) and a realtime extent. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:34:39 +00:00
/* Compute the misalignment between an extent length and a realtime extent .*/
static inline unsigned int
xfs_extlen_to_rtxmod(
struct xfs_mount *mp,
xfs_extlen_t len)
{
xfs: use shifting and masking when converting rt extents, if possible Avoid the costs of integer division (32-bit and 64-bit) if the realtime extent size is a power of two. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:40:11 +00:00
if (mp->m_rtxblklog >= 0)
return len & mp->m_rtxblkmask;
xfs: create a helper to compute leftovers of realtime extents Create a helper to compute the misalignment between a file extent (xfs_extlen_t) and a realtime extent. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:34:39 +00:00
return len % mp->m_sb.sb_rextsize;
}
xfs: create a helper to convert extlen to rtextlen Create a helper to compute the realtime extent (xfs_rtxlen_t) from an extent length (xfs_extlen_t) value. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:35:23 +00:00
static inline xfs_rtxlen_t
xfs_extlen_to_rtxlen(
struct xfs_mount *mp,
xfs_extlen_t len)
{
xfs: use shifting and masking when converting rt extents, if possible Avoid the costs of integer division (32-bit and 64-bit) if the realtime extent size is a power of two. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:40:11 +00:00
if (mp->m_rtxblklog >= 0)
return len >> mp->m_rtxblklog;
xfs: create a helper to convert extlen to rtextlen Create a helper to compute the realtime extent (xfs_rtxlen_t) from an extent length (xfs_extlen_t) value. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:35:23 +00:00
return len / mp->m_sb.sb_rextsize;
}
xfs: make RT extent numbers relative to the rtgroup To prepare for adding per-rtgroup bitmap files, make the xfs_rtxnum_t type encode the RT extent number relative to the rtgroup. The biggest part of this to clearly distinguish between the relative extent number that gets masked when converting from a global block number and length values that just have a factor applied to them when converting from file system blocks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:15 +00:00
/* Convert an rt block count into an rt extent count. */
static inline xfs_rtbxlen_t
xfs_blen_to_rtbxlen(
struct xfs_mount *mp,
uint64_t blen)
{
if (likely(mp->m_rtxblklog >= 0))
return blen >> mp->m_rtxblklog;
return div_u64(blen, mp->m_sb.sb_rextsize);
}
xfs: create helpers to deal with rounding xfs_filblks_t to rtx boundaries We're about to segment xfs_rtblock_t addresses, so we must create type-specific helpers to do rt extent rounding of file mapping block lengths because the rtb helpers soon will not do the right thing there. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:33 +00:00
/* Return the offset of a file block length within an rt extent. */
static inline xfs_extlen_t
xfs_blen_to_rtxoff(
struct xfs_mount *mp,
xfs_filblks_t blen)
{
if (likely(mp->m_rtxblklog >= 0))
return blen & mp->m_rtxblkmask;
return do_div(blen, mp->m_sb.sb_rextsize);
}
/* Round this block count up to the nearest rt extent size. */
static inline xfs_filblks_t
xfs_blen_roundup_rtx(
struct xfs_mount *mp,
xfs_filblks_t blen)
{
return roundup_64(blen, mp->m_sb.sb_rextsize);
}
xfs: create helpers to convert rt block numbers to rt extent numbers Create helpers to do unit conversions of rt block numbers to rt extent numbers. There are three variations -- one to compute the rt extent number from an rt block number; one to compute the offset of an rt block within an rt extent; and one to extract both. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:37:07 +00:00
/* Convert an rt block number into an rt extent number. */
static inline xfs_rtxnum_t
xfs_rtb_to_rtx(
struct xfs_mount *mp,
xfs_rtblock_t rtbno)
{
xfs: make xfs_rtblock_t a segmented address like xfs_fsblock_t Now that we've finished adding allocation groups to the realtime volume, let's make the file block mapping address (xfs_rtblock_t) a segmented value just like we do on the data device. This means that group number and block number conversions can be done with shifting and masking instead of integer division. While in theory we could continue caching the rgno shift value in m_rgblklog, the fact that we now always use the shift value means that we have an opportunity to increase the redundancy of the rt geometry by storing it in the ondisk superblock and adding more sb verifier code. Extend the sueprblock to store the rgblklog value. Now that we have segmented addresses, set the correct values in m_groups[XG_TYPE_RTG] so that the xfs_group helpers work correctly. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:33 +00:00
/* open-coded 64-bit masking operation */
rtbno &= mp->m_groups[XG_TYPE_RTG].blkmask;
xfs: make RT extent numbers relative to the rtgroup To prepare for adding per-rtgroup bitmap files, make the xfs_rtxnum_t type encode the RT extent number relative to the rtgroup. The biggest part of this to clearly distinguish between the relative extent number that gets masked when converting from a global block number and length values that just have a factor applied to them when converting from file system blocks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:15 +00:00
if (likely(mp->m_rtxblklog >= 0))
xfs: make xfs_rtblock_t a segmented address like xfs_fsblock_t Now that we've finished adding allocation groups to the realtime volume, let's make the file block mapping address (xfs_rtblock_t) a segmented value just like we do on the data device. This means that group number and block number conversions can be done with shifting and masking instead of integer division. While in theory we could continue caching the rgno shift value in m_rgblklog, the fact that we now always use the shift value means that we have an opportunity to increase the redundancy of the rt geometry by storing it in the ondisk superblock and adding more sb verifier code. Extend the sueprblock to store the rgblklog value. Now that we have segmented addresses, set the correct values in m_groups[XG_TYPE_RTG] so that the xfs_group helpers work correctly. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:33 +00:00
return rtbno >> mp->m_rtxblklog;
return div_u64(rtbno, mp->m_sb.sb_rextsize);
xfs: create helpers to convert rt block numbers to rt extent numbers Create helpers to do unit conversions of rt block numbers to rt extent numbers. There are three variations -- one to compute the rt extent number from an rt block number; one to compute the offset of an rt block within an rt extent; and one to extract both. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:37:07 +00:00
}
/* Return the offset of an rt block number within an rt extent. */
static inline xfs_extlen_t
xfs_rtb_to_rtxoff(
struct xfs_mount *mp,
xfs_rtblock_t rtbno)
{
xfs: make xfs_rtblock_t a segmented address like xfs_fsblock_t Now that we've finished adding allocation groups to the realtime volume, let's make the file block mapping address (xfs_rtblock_t) a segmented value just like we do on the data device. This means that group number and block number conversions can be done with shifting and masking instead of integer division. While in theory we could continue caching the rgno shift value in m_rgblklog, the fact that we now always use the shift value means that we have an opportunity to increase the redundancy of the rt geometry by storing it in the ondisk superblock and adding more sb verifier code. Extend the sueprblock to store the rgblklog value. Now that we have segmented addresses, set the correct values in m_groups[XG_TYPE_RTG] so that the xfs_group helpers work correctly. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:33 +00:00
/* open-coded 64-bit masking operation */
rtbno &= mp->m_groups[XG_TYPE_RTG].blkmask;
xfs: use shifting and masking when converting rt extents, if possible Avoid the costs of integer division (32-bit and 64-bit) if the realtime extent size is a power of two. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:40:11 +00:00
if (likely(mp->m_rtxblklog >= 0))
return rtbno & mp->m_rtxblkmask;
xfs: create helpers to convert rt block numbers to rt extent numbers Create helpers to do unit conversions of rt block numbers to rt extent numbers. There are three variations -- one to compute the rt extent number from an rt block number; one to compute the offset of an rt block within an rt extent; and one to extract both. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:37:07 +00:00
return do_div(rtbno, mp->m_sb.sb_rextsize);
}
xfs: create helpers to deal with rounding xfs_fileoff_t to rtx boundaries We're about to segment xfs_rtblock_t addresses, so we must create type-specific helpers to do rt extent rounding of file block offsets because the rtb helpers soon will not do the right thing there. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:32 +00:00
/* Round this file block offset up to the nearest rt extent size. */
xfs: create rt extent rounding helpers for realtime extent blocks Create a pair of functions to round rtblock numbers up or down to the nearest rt extent. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:38:28 +00:00
static inline xfs_rtblock_t
xfs: create helpers to deal with rounding xfs_fileoff_t to rtx boundaries We're about to segment xfs_rtblock_t addresses, so we must create type-specific helpers to do rt extent rounding of file block offsets because the rtb helpers soon will not do the right thing there. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:32 +00:00
xfs_fileoff_roundup_rtx(
xfs: create rt extent rounding helpers for realtime extent blocks Create a pair of functions to round rtblock numbers up or down to the nearest rt extent. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:38:28 +00:00
struct xfs_mount *mp,
xfs: create helpers to deal with rounding xfs_fileoff_t to rtx boundaries We're about to segment xfs_rtblock_t addresses, so we must create type-specific helpers to do rt extent rounding of file block offsets because the rtb helpers soon will not do the right thing there. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:32 +00:00
xfs_fileoff_t off)
{
return roundup_64(off, mp->m_sb.sb_rextsize);
}
/* Round this file block offset down to the nearest rt extent size. */
static inline xfs_rtblock_t
xfs_fileoff_rounddown_rtx(
struct xfs_mount *mp,
xfs_fileoff_t off)
xfs: create rt extent rounding helpers for realtime extent blocks Create a pair of functions to round rtblock numbers up or down to the nearest rt extent. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:38:28 +00:00
{
xfs: create helpers to deal with rounding xfs_fileoff_t to rtx boundaries We're about to segment xfs_rtblock_t addresses, so we must create type-specific helpers to do rt extent rounding of file block offsets because the rtb helpers soon will not do the right thing there. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:32 +00:00
return rounddown_64(off, mp->m_sb.sb_rextsize);
xfs: create rt extent rounding helpers for realtime extent blocks Create a pair of functions to round rtblock numbers up or down to the nearest rt extent. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:38:28 +00:00
}
xfs: convert the rtbitmap block and bit macros to static inline functions Replace these macros with typechecked helper functions. Eventually we're going to add more logic to the helpers and it'll be easier if we don't have to macro it up. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:44:13 +00:00
/* Convert an rt extent number to a file block offset in the rt bitmap file. */
static inline xfs_fileoff_t
xfs_rtx_to_rbmblock(
struct xfs_mount *mp,
xfs_rtxnum_t rtx)
{
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
if (xfs_has_rtgroups(mp))
return div_u64(rtx, mp->m_rtx_per_rbmblock);
xfs: convert the rtbitmap block and bit macros to static inline functions Replace these macros with typechecked helper functions. Eventually we're going to add more logic to the helpers and it'll be easier if we don't have to macro it up. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:44:13 +00:00
return rtx >> mp->m_blkbit_log;
}
/* Convert an rt extent number to a word offset within an rt bitmap block. */
static inline unsigned int
xfs_rtx_to_rbmword(
struct xfs_mount *mp,
xfs_rtxnum_t rtx)
{
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
if (xfs_has_rtgroups(mp)) {
unsigned int mod;
div_u64_rem(rtx >> XFS_NBWORDLOG, mp->m_blockwsize, &mod);
return mod;
}
xfs: remove XFS_BLOCKWSIZE and XFS_BLOCKWMASK macros Remove these trivial macros since they're not even part of the ondisk format. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:46:08 +00:00
return (rtx >> XFS_NBWORDLOG) & (mp->m_blockwsize - 1);
xfs: convert the rtbitmap block and bit macros to static inline functions Replace these macros with typechecked helper functions. Eventually we're going to add more logic to the helpers and it'll be easier if we don't have to macro it up. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:44:13 +00:00
}
/* Convert a file block offset in the rt bitmap file to an rt extent number. */
static inline xfs_rtxnum_t
xfs_rbmblock_to_rtx(
struct xfs_mount *mp,
xfs_fileoff_t rbmoff)
{
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
if (xfs_has_rtgroups(mp))
return rbmoff * mp->m_rtx_per_rbmblock;
xfs: convert the rtbitmap block and bit macros to static inline functions Replace these macros with typechecked helper functions. Eventually we're going to add more logic to the helpers and it'll be easier if we don't have to macro it up. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:44:13 +00:00
return rbmoff << mp->m_blkbit_log;
}
xfs: convert open-coded xfs_rtword_t pointer accesses to helper There are a bunch of places where we use open-coded logic to find a pointer to an xfs_rtword_t within a rt bitmap buffer. Convert all that to helper functions for better type safety. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:46:53 +00:00
/* Return a pointer to a bitmap word within a rt bitmap block. */
xfs: use accessor functions for bitmap words Create get and set functions for rtbitmap words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk rtbitmap words so that the compiler can perform proper typechecking as we go back and forth. In the upcoming rtgroups feature, we're going to fix the problem that rtwords are written in host endian order, which means we'll need the distinct rtword/rtword_raw types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:49:01 +00:00
static inline union xfs_rtword_raw *
xfs: convert open-coded xfs_rtword_t pointer accesses to helper There are a bunch of places where we use open-coded logic to find a pointer to an xfs_rtword_t within a rt bitmap buffer. Convert all that to helper functions for better type safety. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:46:53 +00:00
xfs_rbmblock_wordptr(
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
struct xfs_rtalloc_args *args,
xfs: convert open-coded xfs_rtword_t pointer accesses to helper There are a bunch of places where we use open-coded logic to find a pointer to an xfs_rtword_t within a rt bitmap buffer. Convert all that to helper functions for better type safety. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:46:53 +00:00
unsigned int index)
{
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
struct xfs_mount *mp = args->mp;
union xfs_rtword_raw *words;
struct xfs_rtbuf_blkinfo *hdr = args->rbmbp->b_addr;
if (xfs_has_rtgroups(mp))
words = (union xfs_rtword_raw *)(hdr + 1);
else
words = args->rbmbp->b_addr;
xfs: convert open-coded xfs_rtword_t pointer accesses to helper There are a bunch of places where we use open-coded logic to find a pointer to an xfs_rtword_t within a rt bitmap buffer. Convert all that to helper functions for better type safety. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:46:53 +00:00
return words + index;
}
xfs: use accessor functions for bitmap words Create get and set functions for rtbitmap words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk rtbitmap words so that the compiler can perform proper typechecking as we go back and forth. In the upcoming rtgroups feature, we're going to fix the problem that rtwords are written in host endian order, which means we'll need the distinct rtword/rtword_raw types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:49:01 +00:00
/* Convert an ondisk bitmap word to its incore representation. */
static inline xfs_rtword_t
xfs_rtbitmap_getword(
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
struct xfs_rtalloc_args *args,
xfs: use accessor functions for bitmap words Create get and set functions for rtbitmap words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk rtbitmap words so that the compiler can perform proper typechecking as we go back and forth. In the upcoming rtgroups feature, we're going to fix the problem that rtwords are written in host endian order, which means we'll need the distinct rtword/rtword_raw types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:49:01 +00:00
unsigned int index)
{
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
union xfs_rtword_raw *word = xfs_rbmblock_wordptr(args, index);
xfs: use accessor functions for bitmap words Create get and set functions for rtbitmap words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk rtbitmap words so that the compiler can perform proper typechecking as we go back and forth. In the upcoming rtgroups feature, we're going to fix the problem that rtwords are written in host endian order, which means we'll need the distinct rtword/rtword_raw types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:49:01 +00:00
xfs: encode the rtbitmap in big endian format Currently, the ondisk realtime bitmap file is accessed in units of 32-bit words. There's no endian translation of the contents of this file, which means that the Bad Things Happen(tm) if you go from (say) x86 to powerpc. Since we have a new feature flag, let's take the opportunity to enforce an endianness on the file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
if (xfs_has_rtgroups(args->mp))
return be32_to_cpu(word->rtg);
xfs: use accessor functions for bitmap words Create get and set functions for rtbitmap words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk rtbitmap words so that the compiler can perform proper typechecking as we go back and forth. In the upcoming rtgroups feature, we're going to fix the problem that rtwords are written in host endian order, which means we'll need the distinct rtword/rtword_raw types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:49:01 +00:00
return word->old;
}
/* Set an ondisk bitmap word from an incore representation. */
static inline void
xfs_rtbitmap_setword(
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
struct xfs_rtalloc_args *args,
xfs: use accessor functions for bitmap words Create get and set functions for rtbitmap words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk rtbitmap words so that the compiler can perform proper typechecking as we go back and forth. In the upcoming rtgroups feature, we're going to fix the problem that rtwords are written in host endian order, which means we'll need the distinct rtword/rtword_raw types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:49:01 +00:00
unsigned int index,
xfs_rtword_t value)
{
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
union xfs_rtword_raw *word = xfs_rbmblock_wordptr(args, index);
xfs: use accessor functions for bitmap words Create get and set functions for rtbitmap words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk rtbitmap words so that the compiler can perform proper typechecking as we go back and forth. In the upcoming rtgroups feature, we're going to fix the problem that rtwords are written in host endian order, which means we'll need the distinct rtword/rtword_raw types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:49:01 +00:00
xfs: encode the rtbitmap in big endian format Currently, the ondisk realtime bitmap file is accessed in units of 32-bit words. There's no endian translation of the contents of this file, which means that the Bad Things Happen(tm) if you go from (say) x86 to powerpc. Since we have a new feature flag, let's take the opportunity to enforce an endianness on the file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
if (xfs_has_rtgroups(args->mp))
word->rtg = cpu_to_be32(value);
else
word->old = value;
xfs: use accessor functions for bitmap words Create get and set functions for rtbitmap words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk rtbitmap words so that the compiler can perform proper typechecking as we go back and forth. In the upcoming rtgroups feature, we're going to fix the problem that rtwords are written in host endian order, which means we'll need the distinct rtword/rtword_raw types. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:49:01 +00:00
}
xfs: convert rt summary macros to helpers Convert the realtime summary file macros to helper functions so that we can improve type checking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:47:34 +00:00
/*
* Convert a rt extent length and rt bitmap block number to a xfs_suminfo_t
* offset within the rt summary file.
*/
static inline xfs_rtsumoff_t
xfs_rtsumoffs(
struct xfs_mount *mp,
int log2_len,
xfs_fileoff_t rbmoff)
{
return log2_len * mp->m_sb.sb_rbmblocks + rbmoff;
}
/*
* Convert an xfs_suminfo_t offset to a file block offset within the rt summary
* file.
*/
static inline xfs_fileoff_t
xfs_rtsumoffs_to_block(
struct xfs_mount *mp,
xfs_rtsumoff_t rsumoff)
{
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
if (xfs_has_rtgroups(mp))
return rsumoff / mp->m_blockwsize;
xfs: convert rt summary macros to helpers Convert the realtime summary file macros to helper functions so that we can improve type checking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:47:34 +00:00
return XFS_B_TO_FSBT(mp, rsumoff * sizeof(xfs_suminfo_t));
}
/*
* Convert an xfs_suminfo_t offset to an info word offset within an rt summary
* block.
*/
static inline unsigned int
xfs_rtsumoffs_to_infoword(
struct xfs_mount *mp,
xfs_rtsumoff_t rsumoff)
{
unsigned int mask = mp->m_blockmask >> XFS_SUMINFOLOG;
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
if (xfs_has_rtgroups(mp))
return rsumoff % mp->m_blockwsize;
xfs: convert rt summary macros to helpers Convert the realtime summary file macros to helper functions so that we can improve type checking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:47:34 +00:00
return rsumoff & mask;
}
/* Return a pointer to a summary info word within a rt summary block. */
xfs: use accessor functions for summary info words Create get and set functions for rtsummary words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk summary info words so that the compiler can perform proper typechecking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:51:16 +00:00
static inline union xfs_suminfo_raw *
xfs: convert rt summary macros to helpers Convert the realtime summary file macros to helper functions so that we can improve type checking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:47:34 +00:00
xfs_rsumblock_infoptr(
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
struct xfs_rtalloc_args *args,
xfs: convert rt summary macros to helpers Convert the realtime summary file macros to helper functions so that we can improve type checking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:47:34 +00:00
unsigned int index)
{
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
union xfs_suminfo_raw *info;
struct xfs_rtbuf_blkinfo *hdr = args->sumbp->b_addr;
if (xfs_has_rtgroups(args->mp))
info = (union xfs_suminfo_raw *)(hdr + 1);
else
info = args->sumbp->b_addr;
xfs: convert rt summary macros to helpers Convert the realtime summary file macros to helper functions so that we can improve type checking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:47:34 +00:00
return info + index;
}
xfs: use accessor functions for summary info words Create get and set functions for rtsummary words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk summary info words so that the compiler can perform proper typechecking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:51:16 +00:00
/* Get the current value of a summary counter. */
static inline xfs_suminfo_t
xfs_suminfo_get(
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
struct xfs_rtalloc_args *args,
xfs: use accessor functions for summary info words Create get and set functions for rtsummary words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk summary info words so that the compiler can perform proper typechecking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:51:16 +00:00
unsigned int index)
{
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
union xfs_suminfo_raw *info = xfs_rsumblock_infoptr(args, index);
xfs: use accessor functions for summary info words Create get and set functions for rtsummary words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk summary info words so that the compiler can perform proper typechecking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:51:16 +00:00
xfs: encode the rtsummary in big endian format Currently, the ondisk realtime summary file counters are accessed in units of 32-bit words. There's no endian translation of the contents of this file, which means that the Bad Things Happen(tm) if you go from (say) x86 to powerpc. Since we have a new feature flag, let's take the opportunity to enforce an endianness on the file. Encode the summary information in big endian format, like most of the rest of the filesystem. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:24 +00:00
if (xfs_has_rtgroups(args->mp))
return be32_to_cpu(info->rtg);
xfs: use accessor functions for summary info words Create get and set functions for rtsummary words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk summary info words so that the compiler can perform proper typechecking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:51:16 +00:00
return info->old;
}
/* Add to the current value of a summary counter and return the new value. */
static inline xfs_suminfo_t
xfs_suminfo_add(
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
struct xfs_rtalloc_args *args,
xfs: use accessor functions for summary info words Create get and set functions for rtsummary words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk summary info words so that the compiler can perform proper typechecking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:51:16 +00:00
unsigned int index,
int delta)
{
xfs: simplify rt bitmap/summary block accessor functions Simplify the calling convention of these functions since the xfs_rtalloc_args structure contains the parameters we need. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:28:10 +00:00
union xfs_suminfo_raw *info = xfs_rsumblock_infoptr(args, index);
xfs: use accessor functions for summary info words Create get and set functions for rtsummary words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk summary info words so that the compiler can perform proper typechecking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:51:16 +00:00
xfs: encode the rtsummary in big endian format Currently, the ondisk realtime summary file counters are accessed in units of 32-bit words. There's no endian translation of the contents of this file, which means that the Bad Things Happen(tm) if you go from (say) x86 to powerpc. Since we have a new feature flag, let's take the opportunity to enforce an endianness on the file. Encode the summary information in big endian format, like most of the rest of the filesystem. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:24 +00:00
if (xfs_has_rtgroups(args->mp)) {
be32_add_cpu(&info->rtg, delta);
return be32_to_cpu(info->rtg);
}
xfs: use accessor functions for summary info words Create get and set functions for rtsummary words so that we can redefine the ondisk format with a specific endianness. Note that this requires the definition of a distinct type for ondisk summary info words so that the compiler can perform proper typechecking. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:51:16 +00:00
info->old += delta;
return info->old;
}
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
static inline const struct xfs_buf_ops *
xfs_rtblock_ops(
struct xfs_mount *mp,
enum xfs_rtg_inodes type)
{
if (xfs_has_rtgroups(mp)) {
if (type == XFS_RTGI_SUMMARY)
return &xfs_rtsummary_buf_ops;
return &xfs_rtbitmap_buf_ops;
}
return &xfs_rtbuf_ops;
}
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
/*
xfs: convert rt extent numbers to xfs_rtxnum_t Further disambiguate the xfs_rtblock_t uses by creating a new type, xfs_rtxnum_t, to store the position of an extent within the realtime section, in units of rtextents. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:32:45 +00:00
* Functions for walking free space rtextents in the realtime bitmap.
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
*/
struct xfs_rtalloc_rec {
xfs: convert rt extent numbers to xfs_rtxnum_t Further disambiguate the xfs_rtblock_t uses by creating a new type, xfs_rtxnum_t, to store the position of an extent within the realtime section, in units of rtextents. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:32:45 +00:00
xfs_rtxnum_t ar_startext;
xfs: convert rt bitmap extent lengths to xfs_rtbxlen_t XFS uses xfs_rtblock_t for many different uses, which makes it much more difficult to perform a unit analysis on the codebase. One of these (ab)uses is when we need to store the length of a free space extent as stored in the realtime bitmap. Because there can be up to 2^64 realtime extents in a filesystem, we need a new type that is larger than xfs_rtxlen_t for callers that are querying the bitmap directly. This means scrub and growfs. Create this type as "xfs_rtbxlen_t" and use it to store 64-bit rtx lengths. 'b' stands for 'bitmap' or 'big'; reader's choice. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:31:12 +00:00
xfs_rtbxlen_t ar_extcount;
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
};
typedef int (*xfs_rtalloc_query_range_fn)(
xfs: move RT bitmap and summary information to the rtgroup Move the pointers to the RT bitmap and summary inodes as well as the summary cache to the rtgroups structure to prepare for having a separate bitmap and summary inodes for each rtgroup. Code using the inodes now needs to operate on a rtgroup. Where easily possible such code is converted to iterate over all rtgroups, else rtgroup 0 (the only one that can currently exist) is hardcoded. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
struct xfs_rtgroup *rtg,
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
struct xfs_trans *tp,
const struct xfs_rtalloc_rec *rec,
void *priv);
#ifdef CONFIG_XFS_RT
xfs: cache last bitmap block in realtime allocator Profiling a workload on a highly fragmented realtime device showed a ton of CPU cycles being spent in xfs_trans_read_buf() called by xfs_rtbuf_get(). Further tracing showed that much of that was repeated calls to xfs_rtbuf_get() for the same block of the realtime bitmap. These come from xfs_rtallocate_extent_block(): as it walks through ranges of free bits in the bitmap, each call to xfs_rtcheck_range() and xfs_rtfind_{forw,back}() gets the same bitmap block. If the bitmap block is very fragmented, then this is _a lot_ of buffer lookups. The realtime allocator already passes around a cache of the last used realtime summary block to avoid repeated reads (the parameters rbpp and rsb). We can do the same for the realtime bitmap. This replaces rbpp and rsb with a struct xfs_rtbuf_cache, which caches the most recently used block for both the realtime bitmap and summary. xfs_rtbuf_get() now handles the caching instead of the callers, which requires plumbing xfs_rtbuf_cache to more functions but also makes sure we don't miss anything. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 17:13:22 +00:00
void xfs_rtbuf_cache_relse(struct xfs_rtalloc_args *args);
xfs: add bounds checking to xfs_rt{bitmap,summary}_read_buf Add a corruption check for passing an invalid block number, which is a lot easier to understand than the xfs_bmapi_read failure later on. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-08-30 22:36:54 +00:00
int xfs_rtbitmap_read_buf(struct xfs_rtalloc_args *args, xfs_fileoff_t block);
int xfs_rtsummary_read_buf(struct xfs_rtalloc_args *args, xfs_fileoff_t block);
xfs: consolidate realtime allocation arguments Consolidate the arguments passed around the rt allocator into a struct xfs_rtalloc_arg similar to how the btree allocator arguments are consolidated in a struct xfs_alloc_arg.... Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:54:19 +00:00
int xfs_rtcheck_range(struct xfs_rtalloc_args *args, xfs_rtxnum_t start,
xfs_rtxlen_t len, int val, xfs_rtxnum_t *new, int *stat);
int xfs_rtfind_back(struct xfs_rtalloc_args *args, xfs_rtxnum_t start,
xfs: remove the limit argument to xfs_rtfind_back All callers pass a 0 limit to xfs_rtfind_back, so remove the argument and hard code it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-08-30 22:36:53 +00:00
xfs_rtxnum_t *rtblock);
xfs: consolidate realtime allocation arguments Consolidate the arguments passed around the rt allocator into a struct xfs_rtalloc_arg similar to how the btree allocator arguments are consolidated in a struct xfs_alloc_arg.... Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:54:19 +00:00
int xfs_rtfind_forw(struct xfs_rtalloc_args *args, xfs_rtxnum_t start,
xfs_rtxnum_t limit, xfs_rtxnum_t *rtblock);
int xfs_rtmodify_range(struct xfs_rtalloc_args *args, xfs_rtxnum_t start,
xfs_rtxlen_t len, int val);
xfs: move xfs_rtget_summary to xfs_rtbitmap.c xfs_rtmodify_summary_int is only used inside xfs_rtbitmap.c and to implement xfs_rtget_summary. Move xfs_rtget_summary to xfs_rtbitmap.c as the exported API and mark xfs_rtmodify_summary_int static. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
2023-12-18 04:57:26 +00:00
int xfs_rtget_summary(struct xfs_rtalloc_args *args, int log,
xfs_fileoff_t bbno, xfs_suminfo_t *sum);
xfs: consolidate realtime allocation arguments Consolidate the arguments passed around the rt allocator into a struct xfs_rtalloc_arg similar to how the btree allocator arguments are consolidated in a struct xfs_alloc_arg.... Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:54:19 +00:00
int xfs_rtmodify_summary(struct xfs_rtalloc_args *args, int log,
xfs: cache last bitmap block in realtime allocator Profiling a workload on a highly fragmented realtime device showed a ton of CPU cycles being spent in xfs_trans_read_buf() called by xfs_rtbuf_get(). Further tracing showed that much of that was repeated calls to xfs_rtbuf_get() for the same block of the realtime bitmap. These come from xfs_rtallocate_extent_block(): as it walks through ranges of free bits in the bitmap, each call to xfs_rtcheck_range() and xfs_rtfind_{forw,back}() gets the same bitmap block. If the bitmap block is very fragmented, then this is _a lot_ of buffer lookups. The realtime allocator already passes around a cache of the last used realtime summary block to avoid repeated reads (the parameters rbpp and rsb). We can do the same for the realtime bitmap. This replaces rbpp and rsb with a struct xfs_rtbuf_cache, which caches the most recently used block for both the realtime bitmap and summary. xfs_rtbuf_get() now handles the caching instead of the callers, which requires plumbing xfs_rtbuf_cache to more functions but also makes sure we don't miss anything. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 17:13:22 +00:00
xfs_fileoff_t bbno, int delta);
xfs: consolidate realtime allocation arguments Consolidate the arguments passed around the rt allocator into a struct xfs_rtalloc_arg similar to how the btree allocator arguments are consolidated in a struct xfs_alloc_arg.... Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:54:19 +00:00
int xfs_rtfree_range(struct xfs_rtalloc_args *args, xfs_rtxnum_t start,
xfs: cache last bitmap block in realtime allocator Profiling a workload on a highly fragmented realtime device showed a ton of CPU cycles being spent in xfs_trans_read_buf() called by xfs_rtbuf_get(). Further tracing showed that much of that was repeated calls to xfs_rtbuf_get() for the same block of the realtime bitmap. These come from xfs_rtallocate_extent_block(): as it walks through ranges of free bits in the bitmap, each call to xfs_rtcheck_range() and xfs_rtfind_{forw,back}() gets the same bitmap block. If the bitmap block is very fragmented, then this is _a lot_ of buffer lookups. The realtime allocator already passes around a cache of the last used realtime summary block to avoid repeated reads (the parameters rbpp and rsb). We can do the same for the realtime bitmap. This replaces rbpp and rsb with a struct xfs_rtbuf_cache, which caches the most recently used block for both the realtime bitmap and summary. xfs_rtbuf_get() now handles the caching instead of the callers, which requires plumbing xfs_rtbuf_cache to more functions but also makes sure we don't miss anything. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 17:13:22 +00:00
xfs_rtxlen_t len);
xfs: move RT bitmap and summary information to the rtgroup Move the pointers to the RT bitmap and summary inodes as well as the summary cache to the rtgroups structure to prepare for having a separate bitmap and summary inodes for each rtgroup. Code using the inodes now needs to operate on a rtgroup. Where easily possible such code is converted to iterate over all rtgroups, else rtgroup 0 (the only one that can currently exist) is hardcoded. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
int xfs_rtalloc_query_range(struct xfs_rtgroup *rtg, struct xfs_trans *tp,
xfs: simplify xfs_rtalloc_query_range There isn't much of a good reason to pass the xfs_rtalloc_rec structures that describe extents to xfs_rtalloc_query_range as we really just want a lower and upper bound xfs_rtxnum_t. Pass the rtxnum directly and simply the interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-08-30 22:37:08 +00:00
xfs_rtxnum_t start, xfs_rtxnum_t end,
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
xfs_rtalloc_query_range_fn fn, void *priv);
xfs: move RT bitmap and summary information to the rtgroup Move the pointers to the RT bitmap and summary inodes as well as the summary cache to the rtgroups structure to prepare for having a separate bitmap and summary inodes for each rtgroup. Code using the inodes now needs to operate on a rtgroup. Where easily possible such code is converted to iterate over all rtgroups, else rtgroup 0 (the only one that can currently exist) is hardcoded. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
int xfs_rtalloc_query_all(struct xfs_rtgroup *rtg, struct xfs_trans *tp,
xfs_rtalloc_query_range_fn fn, void *priv);
int xfs_rtalloc_extent_is_free(struct xfs_rtgroup *rtg, struct xfs_trans *tp,
xfs_rtxnum_t start, xfs_rtxlen_t len, bool *is_free);
int xfs_rtfree_extent(struct xfs_trans *tp, struct xfs_rtgroup *rtg,
xfs_rtxnum_t start, xfs_rtxlen_t len);
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
/* Same as above, but in units of rt blocks. */
xfs: move RT bitmap and summary information to the rtgroup Move the pointers to the RT bitmap and summary inodes as well as the summary cache to the rtgroups structure to prepare for having a separate bitmap and summary inodes for each rtgroup. Code using the inodes now needs to operate on a rtgroup. Where easily possible such code is converted to iterate over all rtgroups, else rtgroup 0 (the only one that can currently exist) is hardcoded. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
int xfs_rtfree_blocks(struct xfs_trans *tp, struct xfs_rtgroup *rtg,
xfs_fsblock_t rtbno, xfs_filblks_t rtlen);
xfs: create helpers for rtbitmap block/wordcount computations Create helper functions that compute the number of blocks or words necessary to store the rt bitmap. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:48:20 +00:00
xfs: add block headers to realtime bitmap and summary blocks Upgrade rtbitmap and rtsummary blocks to have self describing metadata like most every other thing in XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-11-04 04:19:23 +00:00
xfs_rtxnum_t xfs_rtbitmap_rtx_per_rbmblock(struct xfs_mount *mp);
xfs: refactor xfs_rtbitmap_blockcount Rename the existing xfs_rtbitmap_blockcount to xfs_rtbitmap_blockcount_len and add a new xfs_rtbitmap_blockcount wrapper around it that takes the number of extents from the mount structure. This will simplify the move to per-rtgroup bitmaps as those will need to pass in the number of extents per rtgroup instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:14 +00:00
xfs_filblks_t xfs_rtbitmap_blockcount(struct xfs_mount *mp);
xfs_filblks_t xfs_rtbitmap_blockcount_len(struct xfs_mount *mp,
xfs_rtbxlen_t rtextents);
xfs: create helpers for rtsummary block/wordcount computations Create helper functions that compute the number of blocks or words necessary to store the rt summary file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:50:34 +00:00
xfs_filblks_t xfs_rtsummary_blockcount(struct xfs_mount *mp,
xfs: refactor xfs_rtsummary_blockcount Make xfs_rtsummary_blockcount take all the required information from the mount structure and return the number of summary levels from it as well. This cleans up many of the callers and prepares for making the rtsummary files per-rtgroup where they need to look at different value. This means we recalculate some values in some callers, but as all these calculations are outside the fast path and cheap, which seems like a price worth paying. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:14 +00:00
unsigned int *rsumlevels);
xfs: refactor realtime inode locking Create helper functions to deal with locking realtime metadata inodes. This enables us to maintain correct locking order once we start adding the realtime rmap and refcount btree inodes. Signed-off-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
2024-04-22 11:20:08 +00:00
xfs: move RT bitmap and summary information to the rtgroup Move the pointers to the RT bitmap and summary inodes as well as the summary cache to the rtgroups structure to prepare for having a separate bitmap and summary inodes for each rtgroup. Code using the inodes now needs to operate on a rtgroup. Where easily possible such code is converted to iterate over all rtgroups, else rtgroup 0 (the only one that can currently exist) is hardcoded. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
int xfs_rtfile_initialize_blocks(struct xfs_rtgroup *rtg,
enum xfs_rtg_inodes type, xfs_fileoff_t offset_fsb,
xfs_fileoff_t end_fsb, void *data);
xfs: support creating per-RTG files in growfs To support adding new RT groups in growfs, we need to be able to create the per-RT group files. Add a new xfs_rtginode_create helper to create a given per-RTG file. Most of the code for that is shared, but the details of the actual file are abstracted out using a new create method in struct xfs_rtginode_ops. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
int xfs_rtbitmap_create(struct xfs_rtgroup *rtg, struct xfs_inode *ip,
struct xfs_trans *tp, bool init);
int xfs_rtsummary_create(struct xfs_rtgroup *rtg, struct xfs_inode *ip,
struct xfs_trans *tp, bool init);
xfs: factor out rtbitmap/summary initialization helpers Add helpers to libxfs that can be shared by growfs and mkfs for initializing the rtbitmap and summary, and by passing the optional data pointer also by repair for rebuilding them. This will become even more useful when the rtgroups feature adds a metadata header to each block, which means even more shared code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> [djwong: minor documentation and data advance tweaks] Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-08-30 22:36:59 +00:00
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
#else /* CONFIG_XFS_RT */
# define xfs_rtfree_extent(t,b,l) (-ENOSYS)
xfs: move RT bitmap and summary information to the rtgroup Move the pointers to the RT bitmap and summary inodes as well as the summary cache to the rtgroups structure to prepare for having a separate bitmap and summary inodes for each rtgroup. Code using the inodes now needs to operate on a rtgroup. Where easily possible such code is converted to iterate over all rtgroups, else rtgroup 0 (the only one that can currently exist) is hardcoded. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:10 +00:00
static inline int xfs_rtfree_blocks(struct xfs_trans *tp,
struct xfs_rtgroup *rtg, xfs_fsblock_t rtbno,
xfs_filblks_t rtlen)
{
return -ENOSYS;
}
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
# define xfs_rtalloc_query_range(m,t,l,h,f,p) (-ENOSYS)
# define xfs_rtalloc_query_all(m,t,f,p) (-ENOSYS)
xfs: simplify xfs_rtbuf_get calling conventions Now that xfs_rtalloc_args holds references to the last-read bitmap and summary blocks, we don't need to pass the buffer pointer out of xfs_rtbuf_get. Callers no longer have to xfs_trans_brelse on their own, though they are required to call xfs_rtbuf_cache_relse before the xfs_rtalloc_args goes out of scope. While we're at it, create some trivial helpers so that we don't have to remember if "0" means "bitmap" and "1" means "summary". Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-18 17:19:41 +00:00
# define xfs_rtbitmap_read_buf(a,b) (-ENOSYS)
# define xfs_rtsummary_read_buf(a,b) (-ENOSYS)
xfs: cache last bitmap block in realtime allocator Profiling a workload on a highly fragmented realtime device showed a ton of CPU cycles being spent in xfs_trans_read_buf() called by xfs_rtbuf_get(). Further tracing showed that much of that was repeated calls to xfs_rtbuf_get() for the same block of the realtime bitmap. These come from xfs_rtallocate_extent_block(): as it walks through ranges of free bits in the bitmap, each call to xfs_rtcheck_range() and xfs_rtfind_{forw,back}() gets the same bitmap block. If the bitmap block is very fragmented, then this is _a lot_ of buffer lookups. The realtime allocator already passes around a cache of the last used realtime summary block to avoid repeated reads (the parameters rbpp and rsb). We can do the same for the realtime bitmap. This replaces rbpp and rsb with a struct xfs_rtbuf_cache, which caches the most recently used block for both the realtime bitmap and summary. xfs_rtbuf_get() now handles the caching instead of the callers, which requires plumbing xfs_rtbuf_cache to more functions but also makes sure we don't miss anything. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 17:13:22 +00:00
# define xfs_rtbuf_cache_relse(a) (0)
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
# define xfs_rtalloc_extent_is_free(m,t,s,l,i) (-ENOSYS)
xfs: create helpers for rtbitmap block/wordcount computations Create helper functions that compute the number of blocks or words necessary to store the rt bitmap. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:48:20 +00:00
static inline xfs_filblks_t
xfs: refactor xfs_rtbitmap_blockcount Rename the existing xfs_rtbitmap_blockcount to xfs_rtbitmap_blockcount_len and add a new xfs_rtbitmap_blockcount wrapper around it that takes the number of extents from the mount structure. This will simplify the move to per-rtgroup bitmaps as those will need to pass in the number of extents per rtgroup instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-04 04:19:14 +00:00
xfs_rtbitmap_blockcount_len(struct xfs_mount *mp, xfs_rtbxlen_t rtextents)
xfs: create helpers for rtbitmap block/wordcount computations Create helper functions that compute the number of blocks or words necessary to store the rt bitmap. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:48:20 +00:00
{
/* shut up gcc */
return 0;
}
xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h Move all the declarations for functionality in xfs_rtbitmap.c into a separate xfs_rtbitmap.h header file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-10-16 16:21:47 +00:00
#endif /* CONFIG_XFS_RT */
#endif /* __XFS_RTBITMAP_H__ */
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