[PATCH] xfs_scrub: don't try to scan xattrs if bstat says there aren't any

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From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

Only try to scan the extended attributes of a file if bstat says that
the file actually has any.  Surprisingly, this reduces the phase 5
runtime by 40% if most of the files don't have attrs.

Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
 scrub/phase5.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/scrub/phase5.c b/scrub/phase5.c
index 703b279..aafa036 100644
--- a/scrub/phase5.c
+++ b/scrub/phase5.c
@@ -259,9 +259,12 @@ xfs_scrub_connections(
 	background_sleep();
 
 	/* Warn about naming problems in xattrs. */
-	moveon = xfs_scrub_scan_fhandle_xattrs(ctx, descr, handle, bstat);
-	if (!moveon)
-		goto out;
+	if (bstat->bs_xflags & FS_XFLAG_HASATTR) {
+		moveon = xfs_scrub_scan_fhandle_xattrs(ctx, descr, handle,
+				bstat);
+		if (!moveon)
+			goto out;
+	}
 
 	/* Open the dir, let the kernel try to reconnect it to the root. */
 	if (S_ISDIR(bstat->bs_mode)) {
--
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