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xfs: reinstate RT support in xfs_bmapi_reserve_delalloc

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Allocate data blocks for RT inodes using xfs_dec_frextents.  While at
it optimize the data device case by doing only a single xfs_dec_fdblocks
call for the extent itself and the indirect blocks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
This commit is contained in:
Christoph Hellwig 2024-04-22 13:20:13 +02:00 committed by Chandan Babu R
parent f30f656e25
commit dc1b17a25c
1 changed files with 14 additions and 8 deletions
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22
fs/xfs/libxfs/xfs_bmap.c
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@ -4069,6 +4069,7 @@ xfs_bmapi_reserve_delalloc(
struct xfs_ifork *ifp = xfs_ifork_ptr(ip, whichfork);
xfs_extlen_t alen;
xfs_extlen_t indlen;
uint64_t fdblocks;
int error;
xfs_fileoff_t aoff = off;
@ -4111,14 +4112,18 @@ xfs_bmapi_reserve_delalloc(
indlen = (xfs_extlen_t)xfs_bmap_worst_indlen(ip, alen);
ASSERT(indlen > 0);
error = xfs_dec_fdblocks(mp, alen, false);
if (error)
goto out_unreserve_quota;
fdblocks = indlen;
if (XFS_IS_REALTIME_INODE(ip)) {
error = xfs_dec_frextents(mp, xfs_rtb_to_rtx(mp, alen));
if (error)
goto out_unreserve_quota;
} else {
fdblocks += alen;
}
error = xfs_dec_fdblocks(mp, indlen, false);
error = xfs_dec_fdblocks(mp, fdblocks, false);
if (error)
goto out_unreserve_blocks;
goto out_unreserve_frextents;
ip->i_delayed_blks += alen;
xfs_mod_delalloc(ip->i_mount, alen + indlen);
@ -4142,8 +4147,9 @@ xfs_bmapi_reserve_delalloc(
return 0;
out_unreserve_blocks:
xfs_add_fdblocks(mp, alen);
out_unreserve_frextents:
if (XFS_IS_REALTIME_INODE(ip))
xfs_add_frextents(mp, xfs_rtb_to_rtx(mp, alen));
out_unreserve_quota:
if (XFS_IS_QUOTA_ON(mp))
xfs_quota_unreserve_blkres(ip, alen);