Jaegeuk Kim 6f85b35203 f2fs: avoid RECLAIM_FS-ON-W: deadlock ... This patch tries to avoid the following deadlock condition of which the reclaim path can trigger f2fs_balance_fs again. ================================= [ INFO: inconsistent lock state ] --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage. kswapd0/41 [HC0[0]:SC0[0]:HE1:SE1] takes: (&sbi->gc_mutex){+.+.?.}, at: f2fs_balance_fs+0xe6/0x100 [f2fs] {RECLAIM_FS-ON-W} state was registered at: [<ffffffff810aa5a9>] mark_held_locks+0xb9/0x140 [<ffffffff810aae85>] lockdep_trace_alloc+0x85/0xf0 [<ffffffff8113ab2c>] __alloc_pages_nodemask+0x7c/0x9b0 [<ffffffff81175aa8>] alloc_pages_current+0xb8/0x180 [<ffffffff811319cf>] __page_cache_alloc+0xaf/0xd0 [<ffffffff8113225c>] find_or_create_page+0x4c/0xb0 [<ffffffffa021359e>] find_data_page+0x14e/0x210 [f2fs] [<ffffffffa021161b>] f2fs_gc+0x9eb/0xd90 [f2fs] [<ffffffffa0218fae>] f2fs_balance_fs+0xee/0x100 [f2fs] [<ffffffffa020848c>] f2fs_setattr+0x6c/0x200 [f2fs] [<ffffffff811ae51b>] notify_change+0x1db/0x3a0 [<ffffffff8118fbd0>] do_truncate+0x60/0xa0 [<ffffffff8118fd95>] vfs_truncate+0x185/0x1b0 [<ffffffff8118fe1c>] do_sys_truncate+0x5c/0xa0 [<ffffffff8118ffee>] SyS_truncate+0xe/0x10 [<ffffffff816e2b42>] system_call_fastpath+0x16/0x1b Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>		2013-05-28 15:03:03 +09:00
..
acl.c
acl.h
checkpoint.c	f2fs: fix BUG_ON during f2fs_evict_inode(dir)	2013-05-28 15:03:01 +09:00
data.c	f2fs: avoid RECLAIM_FS-ON-W: deadlock	2013-05-28 15:03:03 +09:00
debug.c	f2fs: use list_for_each_entry rather than list_for_each_entry_safe	2013-05-28 15:03:02 +09:00
dir.c	f2fs: update inode page after creation	2013-05-28 15:03:02 +09:00
f2fs.h	f2fs, lockdep: annotate mutex_lock_all()	2013-05-28 15:03:02 +09:00
file.c	f2fs: reorganize f2fs_vm_page_mkwrite	2013-05-28 15:03:02 +09:00
gc.c
gc.h
hash.c
inode.c	f2fs: avoid RECLAIM_FS-ON-W: deadlock	2013-05-28 15:03:03 +09:00
Kconfig
Makefile
namei.c	f2fs: remove unnecessary por_doing check	2013-05-28 15:03:01 +09:00
node.c	f2fs: add debug msgs in the recovery routine	2013-05-28 15:03:02 +09:00
node.h
recovery.c	f2fs: don't do checkpoint if error is occurred	2013-05-28 15:03:03 +09:00
segment.c	f2fs: remove unecessary variable and code	2013-05-28 15:03:02 +09:00
segment.h
super.c
xattr.c
xattr.h