Tahsin Erdogan b4709067ac jbd2: preserve original nofs flag during journal restart ... When a transaction starts, start_this_handle() saves current PF_MEMALLOC_NOFS value so that it can be restored at journal stop time. Journal restart is a special case that calls start_this_handle() without stopping the transaction. start_this_handle() isn't aware that the original value is already stored so it overwrites it with current value. For instance, a call sequence like below leaves PF_MEMALLOC_NOFS flag set at the end: jbd2_journal_start() jbd2__journal_restart() jbd2_journal_stop() Make jbd2__journal_restart() restore the original value before calling start_this_handle(). Fixes: 81378da64d ("jbd2: mark the transaction context with the scope GFP_NOFS context") Signed-off-by: Tahsin Erdogan <tahsin@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>		2017-05-21 22:32:23 -04:00
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Kconfig	jbd2: remove debug dependency on debug_fs and update Kconfig help text	2013-06-12 23:07:51 -04:00
Makefile	[PATCH] jbd2: rename jbd2 symbols to avoid duplication of jbd symbols	2006-10-11 11:14:15 -07:00
checkpoint.c	block,fs: use REQ_* flags directly	2016-11-01 09:43:26 -06:00
commit.c	fs/jbd2, locking/mutex, sched/wait: Use mutex_lock_io() for journal->j_checkpoint_mutex	2017-01-14 11:30:06 +01:00
journal.c	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-05-10 10:30:46 -07:00
recovery.c	fs: have ll_rw_block users pass in op and flags separately	2016-06-07 13:41:38 -06:00
revoke.c	jbd2: don't leak memory if setting up journal fails	2017-03-15 15:08:48 -04:00
transaction.c	jbd2: preserve original nofs flag during journal restart	2017-05-21 22:32:23 -04:00