linux/fs/f2fs
Yunlei He fe94793e55 f2fs: get victim segment again after new cp
Previous selected segment may become free after write_checkpoint,
if we do garbage collect on this segment, and then new_curseg happen
to reuse it, it may cause f2fs_bug_on as below.

	panic+0x154/0x29c
	do_garbage_collect+0x15c/0xaf4
	f2fs_gc+0x2dc/0x444
	f2fs_balance_fs.part.22+0xcc/0x14c
	f2fs_balance_fs+0x28/0x34
	f2fs_map_blocks+0x5ec/0x790
	f2fs_preallocate_blocks+0xe0/0x100
	f2fs_file_write_iter+0x64/0x11c
	new_sync_write+0xac/0x11c
	vfs_write+0x144/0x1e4
	SyS_write+0x60/0xc0

Here, maybe we check sit and ssa type during reset_curseg. So, we check
segment is stale or not, and select a new victim to avoid this.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-07-22 11:55:31 -07:00
..
acl.c f2fs: avoid mark_inode_dirty 2016-07-08 10:34:09 -07:00
acl.h f2fs: avoid deadlock on init_inode_metadata 2014-11-03 16:07:33 -08:00
checkpoint.c f2fs: use blk_plug in all the possible paths 2016-07-15 15:21:23 -07:00
data.c f2fs: use blk_plug in all the possible paths 2016-07-15 15:21:23 -07:00
debug.c f2fs: flush inode metadata when checkpoint is doing 2016-06-02 18:05:11 -07:00
dir.c f2fs: fix to report error number of f2fs_find_entry 2016-07-20 14:53:19 -07:00
extent_cache.c f2fs: disable extent_cache for fcollapse/finsert inodes 2016-07-15 15:21:20 -07:00
f2fs.h f2fs: avoid data race when deciding checkpoin in f2fs_sync_file 2016-07-20 14:53:21 -07:00
file.c f2fs: support an ioctl to move a range of data blocks 2016-07-20 14:53:20 -07:00
gc.c f2fs: get victim segment again after new cp 2016-07-22 11:55:31 -07:00
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: avoid mark_inode_dirty 2016-07-08 10:34:09 -07:00
inode.c f2fs: avoid mark_inode_dirty 2016-07-08 10:34:09 -07:00
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: fix to report error number of f2fs_find_entry 2016-07-20 14:53:19 -07:00
node.c f2fs: use blk_plug in all the possible paths 2016-07-15 15:21:23 -07:00
node.h f2fs: produce more nids and reduce readahead nats 2016-07-06 10:44:08 -07:00
recovery.c f2fs: handle error case with f2fs_bug_on 2016-07-20 14:53:22 -07:00
segment.c f2fs: use blk_plug in all the possible paths 2016-07-15 15:21:23 -07:00
segment.h f2fs: add maximum prefree segments 2016-07-15 15:21:21 -07:00
shrinker.c f2fs: produce more nids and reduce readahead nats 2016-07-06 10:44:08 -07:00
super.c f2fs: fix to avoid data update racing between GC and DIO 2016-07-15 15:21:22 -07:00
trace.c f2fs: trace old block address for CoWed page 2016-02-22 21:40:02 -08:00
trace.h f2fs: add sbi and page pointer in f2fs_io_info 2015-05-28 15:41:32 -07:00
xattr.c f2fs: avoid mark_inode_dirty 2016-07-08 10:34:09 -07:00
xattr.h f2fs: add missing argument to f2fs_setxattr stub 2016-03-17 21:19:47 -07:00