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authorChris Mason <mason@suse.com>2006-09-29 01:59:56 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-29 09:18:11 -0700
commita3172027148120b8f8797cbecc7d0a0b215736a1 (patch)
tree9da7b5eafe136c8c5b9e76e9a9cccd70899df252 /net/netrom
parent25736b1c692d436508585d1d710912e6f76be2d8 (diff)
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[PATCH] Fix reiserfs latencies caused by data=ordered
ReiserFS does periodic cleanup of old transactions in order to limit the length of time a journal replay may take after a crash. Sometimes, writing metadata from an old (already committed) transaction may require committing a newer transaction, which also requires writing all data=ordered buffers. This can cause very long stalls on journal_begin. This patch makes sure new transactions will not need to be committed before trying a periodic reclaim of an old transaction. It is low risk because if a bad decision is made, it just means a slightly longer journal replay after a crash. Signed-off-by: Chris Mason <mason@suse.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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