diff mbox series

[25/42] xfs: enable extent size hints for CoW operations

Message ID 167243871251.717073.7768252010589495025.stgit@magnolia (mailing list archive)
State Superseded
Headers show
Series xfs: reflink on the realtime device | expand

Commit Message

Darrick J. Wong Dec. 30, 2022, 10:18 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Wire up the copy-on-write extent size hint for realtime files, and
connect it to the rt allocator so that we avoid fragmentation on rt
filesystems.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/libxfs/xfs_bmap.c |    8 +++++++-
 fs/xfs/xfs_bmap_util.c   |    5 ++++-
 2 files changed, 11 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 552875ddcc4a..b2bc39b1f9b7 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -6450,7 +6450,13 @@  xfs_get_cowextsz_hint(
 	a = 0;
 	if (ip->i_diflags2 & XFS_DIFLAG2_COWEXTSIZE)
 		a = ip->i_cowextsize;
-	b = xfs_get_extsz_hint(ip);
+	if (XFS_IS_REALTIME_INODE(ip)) {
+		b = 0;
+		if (ip->i_diflags & XFS_DIFLAG_EXTSIZE)
+			b = ip->i_extsize;
+	} else {
+		b = xfs_get_extsz_hint(ip);
+	}
 
 	a = max(a, b);
 	if (a == 0)
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 842f472292cd..a54ed26e1cc0 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -138,7 +138,10 @@  xfs_bmap_rtalloc(
 	bool			ignore_locality = false;
 	int			error;
 
-	align = xfs_get_extsz_hint(ap->ip);
+	if (ap->flags & XFS_BMAPI_COWFORK)
+		align = xfs_get_cowextsz_hint(ap->ip);
+	else
+		align = xfs_get_extsz_hint(ap->ip);
 retry:
 	prod = xfs_extlen_to_rtxlen(mp, align);
 	error = xfs_bmap_extsize_align(mp, &ap->got, &ap->prev,