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xfs: factor out a xfs_growfs_rt_alloc_blocks helper

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Split out a helper to allocate or grow the rtbitmap and rtsummary files
in preparation of per-RT group bitmap and summary files.

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>
This commit is contained in:
Christoph Hellwig 2024-11-03 20:19:08 -08:00 committed by Darrick J. Wong
parent cd8d049082
commit 9154b5008c
1 changed files with 39 additions and 17 deletions
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56
fs/xfs/xfs_rtalloc.c
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@ -875,6 +875,43 @@ xfs_last_rt_bmblock(
return bmbno;
}
/*
* Allocate space to the bitmap and summary files, as necessary.
*/
static int
xfs_growfs_rt_alloc_blocks(
struct xfs_mount *mp,
xfs_rfsblock_t nrblocks,
xfs_agblock_t rextsize,
xfs_extlen_t *nrbmblocks)
{
struct xfs_inode *rbmip = mp->m_rbmip;
struct xfs_inode *rsumip = mp->m_rsumip;
xfs_rtxnum_t nrextents = div_u64(nrblocks, rextsize);
xfs_extlen_t orbmblocks;
xfs_extlen_t orsumblocks;
xfs_extlen_t nrsumblocks;
int error;
/*
* Get the old block counts for bitmap and summary inodes.
* These can't change since other growfs callers are locked out.
*/
orbmblocks = XFS_B_TO_FSB(mp, rbmip->i_disk_size);
orsumblocks = XFS_B_TO_FSB(mp, rsumip->i_disk_size);
*nrbmblocks = xfs_rtbitmap_blockcount(mp, nrextents);
nrsumblocks = xfs_rtsummary_blockcount(mp,
xfs_compute_rextslog(nrextents) + 1, *nrbmblocks);
error = xfs_rtfile_initialize_blocks(rbmip, orbmblocks,
*nrbmblocks, NULL);
if (error)
return error;
return xfs_rtfile_initialize_blocks(rsumip, orsumblocks,
nrsumblocks, NULL);
}
/*
* Grow the realtime area of the filesystem.
*/
@ -889,8 +926,6 @@ xfs_growfs_rt(
xfs_extlen_t nrbmblocks; /* new number of rt bitmap blocks */
xfs_rtxnum_t nrextents; /* new number of realtime extents */
xfs_extlen_t nrsumblocks; /* new number of summary blocks */
xfs_extlen_t rbmblocks; /* current number of rt bitmap blocks */
xfs_extlen_t rsumblocks; /* current number of rt summary blks */
uint8_t *rsum_cache; /* old summary cache */
xfs_agblock_t old_rextsize = mp->m_sb.sb_rextsize;
@ -963,21 +998,8 @@ xfs_growfs_rt(
goto out_unlock;
}
/*
* Get the old block counts for bitmap and summary inodes.
* These can't change since other growfs callers are locked out.
*/
rbmblocks = XFS_B_TO_FSB(mp, mp->m_rbmip->i_disk_size);
rsumblocks = XFS_B_TO_FSB(mp, mp->m_rsumip->i_disk_size);
/*
* Allocate space to the bitmap and summary files, as necessary.
*/
error = xfs_rtfile_initialize_blocks(mp->m_rbmip, rbmblocks,
nrbmblocks, NULL);
if (error)
goto out_unlock;
error = xfs_rtfile_initialize_blocks(mp->m_rsumip, rsumblocks,
nrsumblocks, NULL);
error = xfs_growfs_rt_alloc_blocks(mp, in->newblocks, in->extsize,
&nrbmblocks);
if (error)
goto out_unlock;