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xfs: reduce the size of struct xfs_extent_free_item

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We only use EFIs to free metadata blocks -- not regular data/attr fork
extents.  Remove all the fields that we never use, for a net reduction
of 16 bytes.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
This commit is contained in:
Darrick J. Wong
2021-10-12 15:55:54 -07:00
parent c201d9ca53
commit b3b5ff412a
3 changed files with 32 additions and 14 deletions
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25
fs/xfs/libxfs/xfs_alloc.c
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@@ -2462,12 +2462,11 @@ xfs_defer_agfl_block(
ASSERT(xfs_extfree_item_cache != NULL);
ASSERT(oinfo != NULL);
new = kmem_cache_alloc(xfs_extfree_item_cache,
new = kmem_cache_zalloc(xfs_extfree_item_cache,
GFP_KERNEL | __GFP_NOFAIL);
new->xefi_startblock = XFS_AGB_TO_FSB(mp, agno, agbno);
new->xefi_blockcount = 1;
new->xefi_oinfo = *oinfo;
new->xefi_skip_discard = false;
new->xefi_owner = oinfo->oi_owner;
trace_xfs_agfl_free_defer(mp, agno, 0, agbno, 1);
@@ -2505,15 +2504,23 @@ __xfs_free_extent_later(
#endif
ASSERT(xfs_extfree_item_cache != NULL);
new = kmem_cache_alloc(xfs_extfree_item_cache,
new = kmem_cache_zalloc(xfs_extfree_item_cache,
GFP_KERNEL | __GFP_NOFAIL);
new->xefi_startblock = bno;
new->xefi_blockcount = (xfs_extlen_t)len;
if (oinfo)
new->xefi_oinfo = *oinfo;
else
new->xefi_oinfo = XFS_RMAP_OINFO_SKIP_UPDATE;
new->xefi_skip_discard = skip_discard;
if (skip_discard)
new->xefi_flags |= XFS_EFI_SKIP_DISCARD;
if (oinfo) {
ASSERT(oinfo->oi_offset == 0);
if (oinfo->oi_flags & XFS_OWNER_INFO_ATTR_FORK)
new->xefi_flags |= XFS_EFI_ATTR_FORK;
if (oinfo->oi_flags & XFS_OWNER_INFO_BMBT_BLOCK)
new->xefi_flags |= XFS_EFI_BMBT_BLOCK;
new->xefi_owner = oinfo->oi_owner;
} else {
new->xefi_owner = XFS_RMAP_OWN_NULL;
}
trace_xfs_bmap_free_defer(tp->t_mountp,
XFS_FSB_TO_AGNO(tp->t_mountp, bno), 0,
XFS_FSB_TO_AGBNO(tp->t_mountp, bno), len);