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authorJan Kara <jack@suse.cz>2009-03-26 13:08:04 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 15:44:59 -0700
commit9e80d407736161d9b8b0c5a0d44f786e44c322ea (patch)
tree1d60b5b3e766cd123189278c3576f79d26315426 /Documentation/dontdiff
parent0384e2959127a56d0640505d004d8dd92f9c29f5 (diff)
downloadlinux-linaro-stable-9e80d407736161d9b8b0c5a0d44f786e44c322ea.tar.gz
ext3: Avoid starting a transaction in writepage when not necessary
We don't have to start a transaction in writepage() when all the blocks are a properly allocated. Even in ordered mode either the data has been written via write() and they are thus already added to transaction's list or the data was written via mmap and then it's random in which transaction they get written anyway. This should help VM to pageout dirty memory without blocking on transaction commits. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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