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| author | Zach Brown <zach.brown@oracle.com> | 2006-10-11 01:21:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-11 11:14:16 -0700 |
| commit | b517bea1c74e4773482b3f41b3f493522a8c8e30 (patch) | |
| tree | 1e98110151f1a35cde84ce1a2cb6f0cb871e9551 /fs/jbd2/journal.c | |
| parent | d0d856e8bd6e697cb44b2b4dd038f3bec576a70e (diff) | |
| download | op-kernel-dev-b517bea1c74e4773482b3f41b3f493522a8c8e30.zip op-kernel-dev-b517bea1c74e4773482b3f41b3f493522a8c8e30.tar.gz | |
[PATCH] 64-bit jbd2 core
Here is the patch to JBD to handle 64 bit block numbers, originally from Zach
Brown. This patch is useful only after adding support for 64-bit block
numbers in the filesystem.
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/jbd2/journal.c')
| -rw-r--r-- | fs/jbd2/journal.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 8d0f71e..926ebcb 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1610,6 +1610,17 @@ int jbd2_journal_blocks_per_page(struct inode *inode) } /* + * helper functions to deal with 32 or 64bit block numbers. + */ +size_t journal_tag_bytes(journal_t *journal) +{ + if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT)) + return JBD_TAG_SIZE64; + else + return JBD_TAG_SIZE32; +} + +/* * Simple support for retrying memory allocations. Introduced to help to * debug different VM deadlock avoidance strategies. */ |
