From: Christoph Hellwig <hch@xxxxxx>
Source kernel commit: dc1b17a25c321c8f1b4f90f9d6f8afb1d132b69c
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@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: "Darrick J. Wong" <djwong@xxxxxxxxxx>
Signed-off-by: Chandan Babu R <chandanbabu@xxxxxxxxxx>
---
libxfs/xfs_bmap.c | 22 ++++++++++++++--------
1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index 3f70f24ba..1319f1c90 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -4063,6 +4063,7 @@ 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;
@@ -4105,14 +4106,18 @@ 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);
@@ -4136,8 +4141,9 @@ 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);
