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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/inode.c | |
| parent | cc8e94fd126ab2d2e4bcb1b65c7316196f0cec8c (diff) | |
| download | blackbird-obmc-linux-feb0ab32a57e4e6c8b24f6fb68f0ce08efe4603c.tar.gz blackbird-obmc-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/inode.c')
| -rw-r--r-- | fs/ext4/inode.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 16a67359b4c7..7bccdf32a32c 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3584,8 +3584,7 @@ make_io: b = table; end = b + EXT4_SB(sb)->s_inode_readahead_blks; num = EXT4_INODES_PER_GROUP(sb); - if (EXT4_HAS_RO_COMPAT_FEATURE(sb, - EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) + if (ext4_has_group_desc_csum(sb)) num -= ext4_itable_unused_count(sb, gdp); table += num / inodes_per_block; if (end > table) |
