It fixes boot panic when trying to boot from btrfs filesystem.
kernel tries to mount as xfs and gets fatal -EUCLEAN:
[ 0.170000] VFS: Cannot open root device "ubda" or unknown-block(98,0): error -117
[ 0.170000] Please append a correct "root=" boot option; here are the available partitions:
[ 0.170000] 6200 1048576 ubda driver: uml-blkdev
[ 0.170000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
init/do_mounts.c expects only -EINVAL as 'retry another' option.
Fixes regression introduced by commit 98021821a502db347bd9c7671beeee6e8ce07ea6
Signed-off-by: Sergei Trofimovich <slyfox@xxxxxxxxxx>
CC: Ben Myers <bpm@xxxxxxx>
CC: Alex Elder <elder@xxxxxxxxxx>
CC: xfs@xxxxxxxxxxx
CC: linux-kernel@xxxxxxxxxxxxxxx
CC: Dave Chinner <dchinner@xxxxxxxxxx>
CC: Phil White <pwhite@xxxxxxx>
---
fs/xfs/xfs_mount.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index da50846..379cac1 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -641,41 +641,41 @@ xfs_sb_read_verify(
/*
* We may be probed for a filesystem match, so we may not want to emit
* messages when the superblock buffer is not actually an XFS superblock.
* If we find an XFS superblock, the run a normal, noisy mount because we are
* really going to mount it and want to know about errors.
*/
static void
xfs_sb_quiet_read_verify(
struct xfs_buf *bp)
{
struct xfs_sb sb;
xfs_sb_from_disk(&sb, XFS_BUF_TO_SBP(bp));
if (sb.sb_magicnum == XFS_SB_MAGIC) {
/* XFS filesystem, verify noisily! */
xfs_sb_read_verify(bp);
return;
}
/* quietly fail */
- xfs_buf_ioerror(bp, EFSCORRUPTED);
+ xfs_buf_ioerror(bp, EINVAL);
}
static void
xfs_sb_write_verify(
struct xfs_buf *bp)
{
xfs_sb_verify(bp);
}
const struct xfs_buf_ops xfs_sb_buf_ops = {
.verify_read = xfs_sb_read_verify,
.verify_write = xfs_sb_write_verify,
};
static const struct xfs_buf_ops xfs_sb_quiet_buf_ops = {
.verify_read = xfs_sb_quiet_read_verify,
.verify_write = xfs_sb_write_verify,
};
/*
--
1.8.0.2
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