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| author | Darrick J. Wong <djwong@us.ibm.com> | 2012-04-29 18:45:10 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-04-29 18:45:10 -0400 |
| commit | feb0ab32a57e4e6c8b24f6fb68f0ce08efe4603c (patch) | |
| tree | 6438fc46013c2f5d60e78060c66e2809c6056f1a /fs/ext4/balloc.c | |
| parent | cc8e94fd126ab2d2e4bcb1b65c7316196f0cec8c (diff) | |
| download | blackbird-op-linux-feb0ab32a57e4e6c8b24f6fb68f0ce08efe4603c.tar.gz blackbird-op-linux-feb0ab32a57e4e6c8b24f6fb68f0ce08efe4603c.zip | |
ext4: make block group checksums use metadata_csum algorithm
metadata_csum supersedes uninit_bg. Convert the ROCOMPAT uninit_bg
flag check to a helper function that covers both, and make the
checksum calculation algorithm use either crc16 or the metadata_csum
chosen algorithm depending on which flag is set. Print a warning if
we try to mount a filesystem with both feature flags set.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/balloc.c')
| -rw-r--r-- | fs/ext4/balloc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index 0a64e4d5dbad..5745d53c67e8 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -168,7 +168,7 @@ void ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh, /* If checksum is bad mark all blocks used to prevent allocation * essentially implementing a per-group read-only flag. */ - if (!ext4_group_desc_csum_verify(sbi, block_group, gdp)) { + if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) { ext4_error(sb, "Checksum bad for group %u", block_group); ext4_free_group_clusters_set(sb, gdp, 0); ext4_free_inodes_set(sb, gdp, 0); @@ -214,7 +214,7 @@ void ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh, sb->s_blocksize * 8, bh->b_data); ext4_block_bitmap_csum_set(sb, block_group, gdp, bh, EXT4_BLOCKS_PER_GROUP(sb) / 8); - gdp->bg_checksum = ext4_group_desc_csum(sbi, block_group, gdp); + ext4_group_desc_csum_set(sb, block_group, gdp); } /* Return the number of free blocks in a block group. It is used when |
