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| author |   Eric Sandeen <sandeen@redhat.com> | 2006-12-06 20:40:13 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:44 -0800 |
| commit | a8f48a95619cbce8f85423480e7d0a1bf971a62b (patch) | |
| tree | c33bf8406bb61945c4031b89cad533b041599567 /fs/ext3/super.c | |
| parent | [PATCH] Kbuild: add 3 more header files to get properly "unifdef"ed (diff) | |
| download | linux-dev-a8f48a95619cbce8f85423480e7d0a1bf971a62b.tar.xz linux-dev-a8f48a95619cbce8f85423480e7d0a1bf971a62b.zip | |
[PATCH] ext3/4: don't do orphan processing on readonly devices
If you do something like:
# touch foo
# tail -f foo &
# rm foo
# <take snapshot>
# <mount snapshot>
you'll panic, because ext3/4 tries to do orphan list processing on the
readonly snapshot device, and:
kernel: journal commit I/O error
kernel: Assertion failure in journal_flush_Rsmp_e2f189ce() at journal.c:1356: "!journal->j_checkpoint_transactions"
kernel: Kernel panic: Fatal exception
for a truly readonly underlying device, it's reasonable and necessary
to just skip orphan list processing.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to '')
| -rw-r--r-- | fs/ext3/super.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 8ab198133357..580b8a6ca979 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -1264,6 +1264,12 @@ static void ext3_orphan_cleanup (struct super_block * sb, return; } + if (bdev_read_only(sb->s_bdev)) { + printk(KERN_ERR "EXT3-fs: write access " + "unavailable, skipping orphan cleanup.\n"); + return; + } + if (EXT3_SB(sb)->s_mount_state & EXT3_ERROR_FS) { if (es->s_last_orphan) jbd_debug(1, "Errors on filesystem, " |