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xfs: move lru refs to the btree ops structure

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Move the btree buffer LRU refcount to the btree ops structure so that we
can eliminate the last bc_btnum switch in the generic btree code.  We're
about to create repair-specific btree types, and we don't want that
stuff cluttering up libxfs.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2024-02-22 12:35:20 -08:00
parent ad065ef0d2
commit 90cfae818d
7 changed files with 19 additions and 22 deletions
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4
fs/xfs/libxfs/xfs_alloc_btree.c
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@ -458,6 +458,8 @@ const struct xfs_btree_ops xfs_bnobt_ops = {
.rec_len = sizeof(xfs_alloc_rec_t),
.key_len = sizeof(xfs_alloc_key_t),
.lru_refs = XFS_ALLOC_BTREE_REF,
.dup_cursor = xfs_allocbt_dup_cursor,
.set_root = xfs_allocbt_set_root,
.alloc_block = xfs_allocbt_alloc_block,
@ -483,6 +485,8 @@ const struct xfs_btree_ops xfs_cntbt_ops = {
.rec_len = sizeof(xfs_alloc_rec_t),
.key_len = sizeof(xfs_alloc_key_t),
.lru_refs = XFS_ALLOC_BTREE_REF,
.dup_cursor = xfs_allocbt_dup_cursor,
.set_root = xfs_allocbt_set_root,
.alloc_block = xfs_allocbt_alloc_block,

2
fs/xfs/libxfs/xfs_bmap_btree.c
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@ -530,6 +530,8 @@ const struct xfs_btree_ops xfs_bmbt_ops = {
.rec_len = sizeof(xfs_bmbt_rec_t),
.key_len = sizeof(xfs_bmbt_key_t),
.lru_refs = XFS_BMAP_BTREE_REF,
.dup_cursor = xfs_bmbt_dup_cursor,
.update_cursor = xfs_bmbt_update_cursor,
.alloc_block = xfs_bmbt_alloc_block,

24
fs/xfs/libxfs/xfs_btree.c
View File

@ -1284,32 +1284,12 @@ xfs_btree_buf_to_ptr(
}
}
STATIC void
static inline void
xfs_btree_set_refs(
struct xfs_btree_cur *cur,
struct xfs_buf *bp)
{
switch (cur->bc_btnum) {
case XFS_BTNUM_BNO:
case XFS_BTNUM_CNT:
xfs_buf_set_ref(bp, XFS_ALLOC_BTREE_REF);
break;
case XFS_BTNUM_INO:
case XFS_BTNUM_FINO:
xfs_buf_set_ref(bp, XFS_INO_BTREE_REF);
break;
case XFS_BTNUM_BMAP:
xfs_buf_set_ref(bp, XFS_BMAP_BTREE_REF);
break;
case XFS_BTNUM_RMAP:
xfs_buf_set_ref(bp, XFS_RMAP_BTREE_REF);
break;
case XFS_BTNUM_REFC:
xfs_buf_set_ref(bp, XFS_REFC_BTREE_REF);
break;
default:
ASSERT(0);
}
xfs_buf_set_ref(bp, cur->bc_ops->lru_refs);
}
int

3
fs/xfs/libxfs/xfs_btree.h
View File

@ -120,6 +120,9 @@ struct xfs_btree_ops {
size_t key_len;
size_t rec_len;
/* LRU refcount to set on each btree buffer created */
unsigned int lru_refs;
/* cursor operations */
struct xfs_btree_cur *(*dup_cursor)(struct xfs_btree_cur *);
void (*update_cursor)(struct xfs_btree_cur *src,

4
fs/xfs/libxfs/xfs_ialloc_btree.c
View File

@ -402,6 +402,8 @@ const struct xfs_btree_ops xfs_inobt_ops = {
.rec_len = sizeof(xfs_inobt_rec_t),
.key_len = sizeof(xfs_inobt_key_t),
.lru_refs = XFS_INO_BTREE_REF,
.dup_cursor = xfs_inobt_dup_cursor,
.set_root = xfs_inobt_set_root,
.alloc_block = xfs_inobt_alloc_block,
@ -424,6 +426,8 @@ const struct xfs_btree_ops xfs_finobt_ops = {
.rec_len = sizeof(xfs_inobt_rec_t),
.key_len = sizeof(xfs_inobt_key_t),
.lru_refs = XFS_INO_BTREE_REF,
.dup_cursor = xfs_inobt_dup_cursor,
.set_root = xfs_finobt_set_root,
.alloc_block = xfs_finobt_alloc_block,

2
fs/xfs/libxfs/xfs_refcount_btree.c
View File

@ -321,6 +321,8 @@ const struct xfs_btree_ops xfs_refcountbt_ops = {
.rec_len = sizeof(struct xfs_refcount_rec),
.key_len = sizeof(struct xfs_refcount_key),
.lru_refs = XFS_REFC_BTREE_REF,
.dup_cursor = xfs_refcountbt_dup_cursor,
.set_root = xfs_refcountbt_set_root,
.alloc_block = xfs_refcountbt_alloc_block,

2
fs/xfs/libxfs/xfs_rmap_btree.c
View File

@ -478,6 +478,8 @@ const struct xfs_btree_ops xfs_rmapbt_ops = {
.rec_len = sizeof(struct xfs_rmap_rec),
.key_len = 2 * sizeof(struct xfs_rmap_key),
.lru_refs = XFS_RMAP_BTREE_REF,
.dup_cursor = xfs_rmapbt_dup_cursor,
.set_root = xfs_rmapbt_set_root,
.alloc_block = xfs_rmapbt_alloc_block,