Linux XFS filesystem development
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From: Andrey Albershteyn <aalbersh@kernel.org>
To: linux-xfs@vger.kernel.org
Cc: cem@kernel.org, cihan.cihan@gmail.com, cmaiolino@redhat.com,
	dchinner@redhat.com, dgc@kernel.org, djwong@kernel.org,
	floss@jetm.me, hch@lst.de, hemanth.selam@gmail.com,
	jiapenglin@tencent.com, johannes.thumshirn@wdc.com,
	kees+treewide@kernel.org, norbert@doyensec.com,
	syzbot+837bcd54843dd6262f2f@syzkaller.appspotmail.com,
	yijiangshan@kylinos.cn, yun.zhou@windriver.com,
	zenghongling@kylinos.cn
Subject: [PATCH 06/28] xfs: remove spurious XBF_DONE clearing on readahead validation failure
Date: Thu, 29 Oct 2026 13:06:03 +0100	[thread overview]
Message-ID: <20261029120631.803074-7-aalbersh@kernel.org> (raw)
In-Reply-To: <20261029120631.803074-1-aalbersh@kernel.org>

From: Christoph Hellwig <hch@lst.de>

Source kernel commit: 7a4eae80b5b3db8d68961af3707fd56f2220cc29

Both callers of ->verify_read already do this, so don't duplicate the
flag manipulation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
---
 libxfs/xfs_dquot_buf.c |  8 +++-----
 libxfs/xfs_inode_buf.c | 15 ++++++++-------
 2 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/libxfs/xfs_dquot_buf.c b/libxfs/xfs_dquot_buf.c
index 21e74d6d17d9..e4599a084be5 100644
--- a/libxfs/xfs_dquot_buf.c
+++ b/libxfs/xfs_dquot_buf.c
@@ -251,8 +251,8 @@ xfs_dquot_buf_read_verify(
 /*
  * readahead errors are silent and simply leave the buffer as !done so a real
  * read will then be run with the xfs_dquot_buf_ops verifier. See
- * xfs_inode_buf_verify() for why we use EIO and ~XBF_DONE here rather than
- * reporting the failure.
+ * xfs_inode_buf_verify() for why we use EIO here rather than reporting the
+ * failure.
  */
 static void
 xfs_dquot_buf_readahead_verify(
@@ -261,10 +261,8 @@ xfs_dquot_buf_readahead_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 
 	if (!xfs_dquot_buf_verify_crc(mp, bp, true) ||
-	    xfs_dquot_buf_verify(mp, bp, true) != NULL) {
+	    xfs_dquot_buf_verify(mp, bp, true) != NULL)
 		xfs_buf_ioerror(bp, -EIO);
-		bp->b_flags &= ~XBF_DONE;
-	}
 }
 
 /*
diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index 8ea12f82ad81..6fff9bbd39ab 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -27,12 +27,14 @@
  * has not had the inode cores stamped into it. Hence for readahead, the buffer
  * may be potentially invalid.
  *
- * If the readahead buffer is invalid, we need to mark it with an error and
- * clear the DONE status of the buffer so that a followup read will re-read it
- * from disk. We don't report the error otherwise to avoid warnings during log
- * recovery and we don't get unnecessary panics on debug kernels. We use EIO here
- * because all we want to do is say readahead failed; there is no-one to report
- * the error to, so this will distinguish it from a non-ra verifier failure.
+ * If the readahead buffer is invalid, we need to mark it with an error so that a
+ * followup read will re-read it from disk.
+ *
+ * We don't report the error otherwise to avoid warnings during log recovery and
+ * we don't get unnecessary panics on debug kernels.  Use EIO here because all
+ * we want to do is say readahead failed; there is no-one to report the error
+ * to, so this will distinguish it from a non-ra verifier failure.
+ *
  * Changes to this readahead error behaviour also need to be reflected in
  * xfs_dquot_buf_readahead_verify().
  */
@@ -62,7 +64,6 @@ xfs_inode_buf_verify(
 		if (unlikely(!di_ok ||
 				XFS_TEST_ERROR(mp, XFS_ERRTAG_ITOBP_INOTOBP))) {
 			if (readahead) {
-				bp->b_flags &= ~XBF_DONE;
 				xfs_buf_ioerror(bp, -EIO);
 				return;
 			}
-- 
2.54.0


  parent reply	other threads:[~2026-10-29 12:09 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-29 12:05 [PATCH 00/28] xfsprogs: libxfs sync for v7.3 Andrey Albershteyn
2026-10-29 12:05 ` [PATCH 01/28] xfs: add xfs_metadir_create_file helper Andrey Albershteyn
2026-10-29 12:05 ` [PATCH 02/28] xfs: create quota metadir inodes using xfs_metadir_create_file Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 03/28] xfs: create rtgroup " Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 04/28] xfs: mark internal metadir file creation helpers static Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 05/28] xfs: use kmalloc_objs() instead of kmalloc() in xfs_da_grow_inode_int Andrey Albershteyn
2026-10-29 12:06 ` Andrey Albershteyn [this message]
2026-10-29 12:06 ` [PATCH 07/28] xfs: hide b_flags manipulation from code outside of xfs_buf.c Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 08/28] xfs: validate attr entry pointer before field access Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 09/28] xfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 10/28] treewide: refresh kmalloc_obj() conversions Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 11/28] xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 12/28] xfs: initialise error in xfs_defer_finish_one() Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 13/28] xfs: give the deferred barrier op type a name Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 14/28] xfs: report the error that made deferred work shut down the fs Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 15/28] xfs: correct the parent pointer space reservation comment Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 16/28] xfs: initialise args->total for parent pointer updates Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 17/28] xfs: assert the reservation covers each da fork growth Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 18/28] xfs: fix the rtrmap and rtrefcount _maxlevels_ondisk functions Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 19/28] xfs: fix xfs_rtrmapbt_mem_cursor for non-rmap filesystems Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 20/28] xfs: preserve owner on in-memory btree creation Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 21/28] xfs: don't leak new_bp if xfs_btree_bload_drop_buf fails Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 22/28] xfs: fix under-reservation of blocks when repairing sf directories Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 23/28] xfs: remove duplicate INO1_WRITTEN check Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 24/28] xfs: fix typos and repeated words in comments Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 25/28] xfs: don't let hidden_space go negative in xfs_metafile_resv_init Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 26/28] xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 27/28] xfs: stop exchanging reflink flags when exchanging mappings Andrey Albershteyn
2026-10-29 12:06 ` [PATCH 28/28] xfs: fix exchange-range-to-eof file size exchange Andrey Albershteyn
2026-10-29 12:25 ` [PATCH 00/28] xfsprogs: libxfs sync for v7.3 Christoph Hellwig

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