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Tao Ma a212d1a71d jbd: Use WRITE_SYNC in journal checkpoint. ... In journal checkpoint, we write the buffer and wait for its finish. But in cfq, the async queue has a very low priority, and in our test, if there are too many sync queues and every queue is filled up with requests, and the process will hang waiting for the log space. So this patch tries to use WRITE_SYNC in __flush_batch so that the request will be moved into sync queue and handled by cfq timely. We also use the new plug, sot that all the WRITE_SYNC requests can be given as a whole when we unplug it. Reported-by: Robin Dong <sanbai@taobao.com> Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Jan Kara <jack@suse.cz>		14 years ago
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Kconfig	…
Makefile	…
checkpoint.c	jbd: Use WRITE_SYNC in journal checkpoint.	14 years ago
commit.c	jbd: Fix oops in journal_remove_journal_head()	14 years ago
journal.c	jbd: Fix oops in journal_remove_journal_head()	14 years ago
recovery.c	jbd: Move debug message into #ifdef area	14 years ago
revoke.c	Fix common misspellings	14 years ago
transaction.c	jbd: Fix oops in journal_remove_journal_head()	14 years ago