Chao Yu 30a61ddf81 f2fs: fix race condition in between free nid allocator/initializer ... In below concurrent case, allocated nid can be loaded into free nid cache and be allocated again. Thread A Thread B - f2fs_create - f2fs_new_inode - alloc_nid - __insert_nid_to_list(ALLOC_NID_LIST) - f2fs_balance_fs_bg - build_free_nids - __build_free_nids - scan_nat_page - add_free_nid - __lookup_nat_cache - f2fs_add_link - init_inode_metadata - new_inode_page - new_node_page - set_node_addr - alloc_nid_done - __remove_nid_from_list(ALLOC_NID_LIST) - __insert_nid_to_list(FREE_NID_LIST) This patch makes nat cache lookup and free nid list operation being atomical to avoid this race condition. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>		2017-03-24 15:10:50 -04:00
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acl.c	f2fs: keep dirty inodes selectively for checkpoint	2016-11-23 12:11:08 -08:00
acl.h	f2fs: remove dead code f2fs_check_acl	2016-09-14 16:52:36 -07:00
checkpoint.c	f2fs: sanity check of crc_offset from raw checkpoint	2017-03-21 22:34:34 -04:00
data.c	f2fs: fix bad prefetchw of NULL page	2017-03-21 22:34:31 -04:00
debug.c	f2fs: calculate the f2fs_stat_info into base_mem	2017-03-21 22:34:36 -04:00
dir.c	f2fs: cleanup the disk level filename updating	2017-03-21 22:34:33 -04:00
extent_cache.c	f2fs: kill __is_extent_same	2017-02-27 10:07:43 -08:00
f2fs.h	f2fs: cleanup the disk level filename updating	2017-03-21 22:34:33 -04:00
file.c	f2fs: avoid stat_inc_atomic_write for non-atomic file	2017-03-21 22:34:36 -04:00
gc.c	f2fs: fix recording invalid last_victim	2017-03-24 15:10:48 -04:00
gc.h	f2fs: detect idle time depending on user behavior	2016-01-11 15:56:37 -08:00
hash.c	f2fs: introduce dot and dotdot name check	2015-05-28 15:41:34 -07:00
inline.c	f2fs: cleanup the disk level filename updating	2017-03-21 22:34:33 -04:00
inode.c	f2fs: fix wrong error injection for evict_inode	2017-03-21 16:52:16 -04:00
Kconfig	f2fs: add mount option to select fault injection ratio	2016-05-07 10:32:22 -07:00
Makefile	fs crypto: move per-file encryption from f2fs tree to fs/crypto	2016-03-17 21:19:33 -07:00
namei.c	f2fs: cleanup the disk level filename updating	2017-03-21 22:34:33 -04:00
node.c	f2fs: fix race condition in between free nid allocator/initializer	2017-03-24 15:10:50 -04:00
node.h	f2fs: adjust the way of calculating nat block	2017-03-21 22:34:27 -04:00
recovery.c	f2fs: change recovery policy of xattr node block	2017-02-23 10:10:52 -08:00
segment.c	f2fs: add a punch discard command function	2017-03-21 22:34:23 -04:00
segment.h	f2fs: update the comment of default nr_pages to skipping	2017-02-27 10:07:46 -08:00
shrinker.c	f2fs: avoid casted negative value as shrink count	2016-11-23 12:11:03 -08:00
super.c	f2fs: add fault injection on f2fs_truncate	2017-03-21 22:34:26 -04:00
trace.c	f2fs: use set_page_private marcro in f2fs_trace_pid	2017-03-24 15:10:49 -04:00
trace.h	f2fs: add sbi and page pointer in f2fs_io_info	2015-05-28 15:41:32 -07:00
xattr.c	f2fs: le16_to_cpu for xattr->e_value_size	2017-03-21 16:52:16 -04:00
xattr.h	f2fs: enhance lookup xattr	2017-02-22 20:24:51 -08:00