diff options
| author | Dmitry Monakhov <dmonakhov@gmail.com> | 2020-03-10 15:01:56 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-01 13:17:42 +0200 |
| commit | be4ff3a49c5d9a07b8de0ba78bf35c168cb5c3d5 (patch) | |
| tree | 842ac292e7c784d38482b9e407c76e025114ce61 /fs | |
| parent | 152875a0f0949631f66d91692b3ae17995ad6e48 (diff) | |
ext4: mark block bitmap corrupted when found instead of BUGON
[ Upstream commit eb5760863fc28feab28b567ddcda7e667e638da0 ]
We already has similar code in ext4_mb_complex_scan_group(), but
ext4_mb_simple_scan_group() still affected.
Other reports: https://www.spinics.net/lists/linux-ext4/msg60231.html
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Dmitry Monakhov <dmonakhov@gmail.com>
Link: https://lore.kernel.org/r/20200310150156.641-1-dmonakhov@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/mballoc.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index e1782b2e2e2d..e5d43d2ee474 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -1901,8 +1901,15 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac, BUG_ON(buddy == NULL); k = mb_find_next_zero_bit(buddy, max, 0); - BUG_ON(k >= max); - + if (k >= max) { + ext4_grp_locked_error(ac->ac_sb, e4b->bd_group, 0, 0, + "%d free clusters of order %d. But found 0", + grp->bb_counters[i], i); + ext4_mark_group_bitmap_corrupted(ac->ac_sb, + e4b->bd_group, + EXT4_GROUP_INFO_BBITMAP_CORRUPT); + break; + } ac->ac_found++; ac->ac_b_ex.fe_len = 1 << i; |