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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: sandeen@sandeen.net, darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org
Subject: [PATCH 01/11] xfs_scrub: separate media error reporting for attribute forks
Date: Mon, 26 Aug 2019 14:31:12 -0700	[thread overview]
Message-ID: <156685507246.2843133.6278494675997623986.stgit@magnolia> (raw)
In-Reply-To: <156685506615.2843133.16536353613627426823.stgit@magnolia>

From: Darrick J. Wong <darrick.wong@oracle.com>

Use different functions to warn about media errors that were detected
underlying xattr data because logical offsets for attribute fork extents
have no meaning to users.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 scrub/phase6.c |   45 ++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 38 insertions(+), 7 deletions(-)


diff --git a/scrub/phase6.c b/scrub/phase6.c
index fec25c31..60355bb8 100644
--- a/scrub/phase6.c
+++ b/scrub/phase6.c
@@ -113,7 +113,7 @@ xfs_decode_special_owner(
 
 /* Report if this extent overlaps a bad region. */
 static bool
-xfs_report_verify_inode_bmap(
+report_data_loss(
 	struct scrub_ctx		*ctx,
 	const char			*descr,
 	int				fd,
@@ -142,6 +142,40 @@ _("offset %llu failed read verification."), bmap->bm_offset);
 	return true;
 }
 
+/* Report if the extended attribute data overlaps a bad region. */
+static bool
+report_attr_loss(
+	struct scrub_ctx		*ctx,
+	const char			*descr,
+	int				fd,
+	int				whichfork,
+	struct fsxattr			*fsx,
+	struct xfs_bmap			*bmap,
+	void				*arg)
+{
+	struct media_verify_state	*vs = arg;
+	struct bitmap			*bmp = vs->d_bad;
+
+	/* Complain about attr fork extents that don't look right. */
+	if (bmap->bm_flags & (BMV_OF_PREALLOC | BMV_OF_DELALLOC)) {
+		str_info(ctx, descr,
+_("found unexpected unwritten/delalloc attr fork extent."));
+		return true;
+	}
+
+	if (fsx->fsx_xflags & FS_XFLAG_REALTIME) {
+		str_info(ctx, descr,
+_("found unexpected realtime attr fork extent."));
+		return true;
+	}
+
+	if (bitmap_test(bmp, bmap->bm_physical, bmap->bm_length))
+		str_error(ctx, descr,
+_("media error in extended attribute data."));
+
+	return true;
+}
+
 /* Iterate the extent mappings of a file to report errors. */
 static bool
 xfs_report_verify_fd(
@@ -155,16 +189,13 @@ xfs_report_verify_fd(
 
 	/* data fork */
 	moveon = xfs_iterate_filemaps(ctx, descr, fd, XFS_DATA_FORK, &key,
-			xfs_report_verify_inode_bmap, arg);
+			report_data_loss, arg);
 	if (!moveon)
 		return false;
 
 	/* attr fork */
-	moveon = xfs_iterate_filemaps(ctx, descr, fd, XFS_ATTR_FORK, &key,
-			xfs_report_verify_inode_bmap, arg);
-	if (!moveon)
-		return false;
-	return true;
+	return xfs_iterate_filemaps(ctx, descr, fd, XFS_ATTR_FORK, &key,
+			report_attr_loss, arg);
 }
 
 /* Report read verify errors in unlinked (but still open) files. */


  reply	other threads:[~2019-08-26 21:31 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-26 21:31 [PATCH 00/11] xfs_scrub: fix IO error reporting Darrick J. Wong
2019-08-26 21:31 ` Darrick J. Wong [this message]
2019-08-26 21:31 ` [PATCH 02/11] xfs_scrub: improve reporting of file data media errors Darrick J. Wong
2019-08-26 21:31 ` [PATCH 03/11] xfs_scrub: better reporting of metadata " Darrick J. Wong
2019-08-26 21:31 ` [PATCH 04/11] xfs_scrub: improve reporting of file " Darrick J. Wong
2019-08-26 21:31 ` [PATCH 05/11] xfs_scrub: don't report media errors on unwritten extents Darrick J. Wong
2019-08-26 21:31 ` [PATCH 06/11] xfs_scrub: reduce fsmap activity for media errors Darrick J. Wong
2019-08-26 21:31 ` [PATCH 07/11] xfs_scrub: request fewer bmaps when we can Darrick J. Wong
2019-08-26 21:31 ` [PATCH 08/11] xfs_scrub: fix media verification thread pool size calculations Darrick J. Wong
2019-08-26 21:32 ` [PATCH 09/11] libfrog: clean up platform_nproc Darrick J. Wong
2019-08-26 21:32 ` [PATCH 10/11] xfs_scrub: clean out the nproc global variable Darrick J. Wong
2019-08-26 21:32 ` [PATCH 11/11] xfs_scrub: create a new category for unfixable errors Darrick J. Wong
2019-09-06  3:38 [PATCH 00/11] xfs_scrub: fix IO error reporting Darrick J. Wong
2019-09-06  3:39 ` [PATCH 01/11] xfs_scrub: separate media error reporting for attribute forks Darrick J. Wong
2019-09-25 21:36 [PATCH 00/11] xfs_scrub: fix IO error reporting Darrick J. Wong
2019-09-25 21:36 ` [PATCH 01/11] xfs_scrub: separate media error reporting for attribute forks Darrick J. Wong
2019-10-21 16:18   ` Eric Sandeen
2019-10-21 17:32     ` Darrick J. Wong

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