Jaegeuk Kim dd802406e3 f2fs: avoid double lock for cp_rwsem ... The __f2fs_add_link is covered by cp_rwsem all the time. This calls init_inode_metadata, which conducts some acl operations including memory allocation with GFP_KERNEL previously. But, under memory pressure, f2fs_write_data_page can be called, which also grabs cp_rwsem too. In this case, this incurs a deadlock pointed by Chao. Thread #1 Thread #2 down_read down_write down_read -> here down_read should wait forever. Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>		2015-01-09 17:02:25 -08:00
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acl.c	f2fs: avoid double lock for cp_rwsem	2015-01-09 17:02:25 -08:00
acl.h	f2fs: avoid deadlock on init_inode_metadata	2014-11-03 16:07:33 -08:00
checkpoint.c	f2fs: activate f2fs_trace_pid	2015-01-09 17:02:24 -08:00
data.c	f2fs: activate f2fs_trace_ios	2015-01-09 17:02:24 -08:00
debug.c	f2fs: use atomic for counting inode with inline_{dir,inode} flag	2014-12-08 10:54:59 -08:00
dir.c	f2fs: use missing the use of f2fs_kunmap_page	2015-01-09 17:02:22 -08:00
f2fs.h	f2fs: use f2fs_io_info to clean up messy parameters during IO path	2015-01-09 17:02:23 -08:00
file.c	f2fs: activate f2fs_trace_ios	2015-01-09 17:02:24 -08:00
gc.c	f2fs: do retry operations with cond_resched	2014-12-08 10:35:05 -08:00
gc.h	f2fs: more fast lookup for gc_inode list	2014-12-02 11:02:50 -08:00
hash.c	f2fs: fix wrong casting for dentry name	2014-08-29 00:26:50 -07:00
inline.c	f2fs: use f2fs_io_info to clean up messy parameters during IO path	2015-01-09 17:02:23 -08:00
inode.c	f2fs: change atomic and volatile write policies	2015-01-09 17:02:22 -08:00
Kconfig	f2fs: add f2fs_io_tracer support	2015-01-09 17:02:24 -08:00
Makefile	f2fs: add f2fs_io_tracer support	2015-01-09 17:02:24 -08:00
namei.c	f2fs: introduce f2fs_dentry_kunmap to clean up	2014-11-23 21:51:53 -08:00
node.c	f2fs: activate f2fs_trace_pid	2015-01-09 17:02:24 -08:00
node.h	f2fs: merge two uchar variable in struct node_info to reduce memory cost	2015-01-09 17:02:23 -08:00
recovery.c	f2fs: avoid to ra unneeded blocks in recover flow	2014-12-08 14:19:09 -08:00
segment.c	f2fs: activate f2fs_trace_pid	2015-01-09 17:02:24 -08:00
segment.h	f2fs: do not skip any writes under memory pressure	2014-11-10 06:51:38 -08:00
super.c	f2fs: activate f2fs_trace_ios	2015-01-09 17:02:24 -08:00
trace.c	f2fs: add key functions for f2fs_io_tracer	2015-01-09 17:02:24 -08:00
trace.h	f2fs: add key functions for f2fs_io_tracer	2015-01-09 17:02:24 -08:00
xattr.c	f2fs: avoid deadlock on init_inode_metadata	2014-11-03 16:07:33 -08:00
xattr.h	f2fs: avoid deadlock on init_inode_metadata	2014-11-03 16:07:33 -08:00