Jaegeuk Kim 769ec6e5b7 f2fs: call radix_tree_preload before radix_tree_insert ...

This patch tries to fix:

 BUG: using smp_processor_id() in preemptible [00000000] code: f2fs_gc-254:0/384
  (radix_tree_node_alloc+0x14/0x74) from [<c033d8a0>] (radix_tree_insert+0x110/0x200)
  (radix_tree_insert+0x110/0x200) from [<c02e8264>] (gc_data_segment+0x340/0x52c)
  (gc_data_segment+0x340/0x52c) from [<c02e8658>] (f2fs_gc+0x208/0x400)
  (f2fs_gc+0x208/0x400) from [<c02e8a98>] (gc_thread_func+0x248/0x28c)
  (gc_thread_func+0x248/0x28c) from [<c0139944>] (kthread+0xa0/0xac)
  (kthread+0xa0/0xac) from [<c0105ef8>] (ret_from_fork+0x14/0x3c)

The reason is that f2fs calls radix_tree_insert under enabled preemption.
So, before calling it, we need to call radix_tree_preload.

Otherwise, we should use _GFP_WAIT for the radix tree, and use mutex or
semaphore to cover the radix tree operations.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

2014-12-05 09:51:04 -08:00

..

acl.c

f2fs: remove the redundant function cond_clear_inode_flag

2014-11-03 16:07:36 -08:00

acl.h

f2fs: avoid deadlock on init_inode_metadata

2014-11-03 16:07:33 -08:00

checkpoint.c

f2fs: call radix_tree_preload before radix_tree_insert

2014-12-05 09:51:04 -08:00

data.c

f2fs: fix to return correct error number in f2fs_write_begin

2014-12-01 13:56:02 -08:00

debug.c

f2fs: introduce struct inode_management to wrap inner fields

2014-11-19 22:49:32 -08:00

dir.c

f2fs: introduce f2fs_dentry_kunmap to clean up

2014-11-23 21:51:53 -08:00

f2fs.h

f2fs: use rw_semaphore for nat entry lock

2014-12-03 21:23:29 -08:00

file.c

f2fs: cleanup redundant macro

2014-12-01 14:16:50 -08:00

gc.c

f2fs: call radix_tree_preload before radix_tree_insert

2014-12-05 09:51:04 -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: fix to recover converted inline_data

2014-11-25 18:08:00 -08:00

inode.c

f2fs: revisit inline_data to avoid data races and potential bugs

2014-11-04 17:34:11 -08:00

Kconfig

f2fs: fix typo

2014-08-19 10:01:33 -07:00

Makefile

f2fs: key functions to handle inline data

2013-12-26 20:40:09 +09:00

namei.c

f2fs: introduce f2fs_dentry_kunmap to clean up

2014-11-23 21:51:53 -08:00

node.c

f2fs: call radix_tree_preload before radix_tree_insert

2014-12-05 09:51:04 -08:00

node.h

f2fs: control the memory footprint used by ino entries

2014-11-06 15:24:46 -08:00

recovery.c

f2fs: introduce f2fs_dentry_kunmap to clean up

2014-11-23 21:51:53 -08:00

segment.c

f2fs: fix livelock calling f2fs_iget during f2fs_evict_inode

2014-11-23 21:51:57 -08:00

segment.h

f2fs: do not skip any writes under memory pressure

2014-11-10 06:51:38 -08:00

super.c

f2fs: remove unneeded check code with option in f2fs_remount

2014-11-19 22:49:31 -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