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| author | Darrick J. Wong <djwong@us.ibm.com> | 2012-05-22 22:43:41 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-05-22 22:43:41 -0400 |
| commit | 8f888ef846d4481e24c74b4a91ece771d2bcbcb5 (patch) | |
| tree | bd037514671c52cea95426ba417a6c1b4b59f96a /fs/jbd2 | |
| parent | f32aaf2d2b996b14e993da1c23f7ee22ea7333a3 (diff) | |
| download | linux-8f888ef846d4481e24c74b4a91ece771d2bcbcb5.tar.gz linux-8f888ef846d4481e24c74b4a91ece771d2bcbcb5.tar.bz2 linux-8f888ef846d4481e24c74b4a91ece771d2bcbcb5.zip | |
jbd2: change disk layout for metadata checksumming
Define flags and allocate space in on-disk journal structures to support
checksumming of journal metadata.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2')
| -rw-r--r-- | fs/jbd2/commit.c | 4 | ||||
| -rw-r--r-- | fs/jbd2/recovery.c | 6 |
2 files changed, 5 insertions, 5 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 840f70f50792..69d780310aea 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -627,7 +627,7 @@ void jbd2_journal_commit_transaction(journal_t *journal) tag = (journal_block_tag_t *) tagp; write_tag_block(tag_bytes, tag, jh2bh(jh)->b_blocknr); - tag->t_flags = cpu_to_be32(tag_flag); + tag->t_flags = cpu_to_be16(tag_flag); tagp += tag_bytes; space_left -= tag_bytes; @@ -651,7 +651,7 @@ void jbd2_journal_commit_transaction(journal_t *journal) submitting the IOs. "tag" still points to the last tag we set up. */ - tag->t_flags |= cpu_to_be32(JBD2_FLAG_LAST_TAG); + tag->t_flags |= cpu_to_be16(JBD2_FLAG_LAST_TAG); start_journal_io: for (i = 0; i < bufs; i++) { diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c index c1a03354a22f..980f3d6b5f88 100644 --- a/fs/jbd2/recovery.c +++ b/fs/jbd2/recovery.c @@ -193,10 +193,10 @@ static int count_tags(journal_t *journal, struct buffer_head *bh) nr++; tagp += tag_bytes; - if (!(tag->t_flags & cpu_to_be32(JBD2_FLAG_SAME_UUID))) + if (!(tag->t_flags & cpu_to_be16(JBD2_FLAG_SAME_UUID))) tagp += 16; - if (tag->t_flags & cpu_to_be32(JBD2_FLAG_LAST_TAG)) + if (tag->t_flags & cpu_to_be16(JBD2_FLAG_LAST_TAG)) break; } @@ -485,7 +485,7 @@ static int do_one_pass(journal_t *journal, unsigned long io_block; tag = (journal_block_tag_t *) tagp; - flags = be32_to_cpu(tag->t_flags); + flags = be16_to_cpu(tag->t_flags); io_block = next_log_block++; wrap(journal, next_log_block); |