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author | Tao Ma <boyu.mt@taobao.com> | 2012-10-22 00:34:32 -0400 |
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committer | Theodore Ts'o <tytso@mit.edu> | 2012-10-22 00:34:32 -0400 |
commit | 79f1ba49569e5aec919b653c55b03274c2331701 (patch) | |
tree | 612d4200d13a10d5df0cb6508cc5b1e7fd10fd45 /net/9p | |
parent | 76495ec1d47e1c0fe0673faf9179bda6bc8ab5c2 (diff) | |
download | op-kernel-dev-79f1ba49569e5aec919b653c55b03274c2331701.zip op-kernel-dev-79f1ba49569e5aec919b653c55b03274c2331701.tar.gz |
ext4: Checksum the block bitmap properly with bigalloc enabled
In mke2fs, we only checksum the whole bitmap block and it is right.
While in the kernel, we use EXT4_BLOCKS_PER_GROUP to indicate the
size of the checksumed bitmap which is wrong when we enable bigalloc.
The right size should be EXT4_CLUSTERS_PER_GROUP and this patch fixes
it.
Also as every caller of ext4_block_bitmap_csum_set and
ext4_block_bitmap_csum_verify pass in EXT4_BLOCKS_PER_GROUP(sb)/8,
we'd better removes this parameter and sets it in the function itself.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'net/9p')
0 files changed, 0 insertions, 0 deletions