]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
nilfs2: avoid double error caused by nilfs_transaction_end
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tue, 7 Apr 2009 02:01:45 +0000 (19:01 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 7 Apr 2009 15:31:17 +0000 (08:31 -0700)
commit47420c799830d4676e544dbec56b2a7f787528f5
treedd61f6c96942b07f762129c893d9cbbbeff60735
parenta2e7d2df82cafb76f76809ddf6e2caa8afe4f75e
nilfs2: avoid double error caused by nilfs_transaction_end

Pekka Enberg pointed out that double error handlings found after
nilfs_transaction_end() can be avoided by separating abort operation:

 OK, I don't understand this. The only way nilfs_transaction_end() can
 fail is if we have NILFS_TI_SYNC set and we fail to construct the
 segment. But why do we want to construct a segment if we don't commit?

 I guess what I'm asking is why don't we have a separate
 nilfs_transaction_abort() function that can't fail for the erroneous
 case to avoid this double error value tracking thing?

This does the separation and renames nilfs_transaction_end() to
nilfs_transaction_commit() for clarification.

Since, some calls of these functions were used just for exclusion control
against the segment constructor, they are replaced with semaphore
operations.

Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/nilfs2/inode.c
fs/nilfs2/ioctl.c
fs/nilfs2/mdt.c
fs/nilfs2/namei.c
fs/nilfs2/nilfs.h
fs/nilfs2/segment.c
fs/nilfs2/the_nilfs.h