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| author |   Dmitry Monakhov <dmonakhov@gmail.com> | 2020-03-10 15:01:56 +0000 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2020-03-14 14:43:13 -0400 |
| commit | eb5760863fc28feab28b567ddcda7e667e638da0 (patch) | |
| tree | 283c772286b8fc38cfcc2505b7990c246512d3d8 /fs/ext4 | |
| parent | ext4: use flexible-array member for xattr structs (diff) | |
| download | wireguard-linux-eb5760863fc28feab28b567ddcda7e667e638da0.tar.xz wireguard-linux-eb5760863fc28feab28b567ddcda7e667e638da0.zip | |
ext4: mark block bitmap corrupted when found instead of BUGON
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>
Diffstat (limited to 'fs/ext4')
| -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 1027e01c9011..97cd1a2201a2 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; |