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authorJaegeuk Kim <jaegeuk@kernel.org>2022-03-04 20:40:05 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2022-03-11 18:36:17 +0300
commitba900534f807f0b327c92d5141c85d2313e2d55c (patch)
tree313fe2dbeadaa494354d0ad00b1335f4381e5d05 /Documentation/ABI
parentd13732cc0cc920ee58d45a38d8472769171aaa1d (diff)
downloadlinux-ba900534f807f0b327c92d5141c85d2313e2d55c.tar.xz
f2fs: don't get FREEZE lock in f2fs_evict_inode in frozen fs
Let's purge inode cache in order to avoid the below deadlock. [freeze test] shrinkder freeze_super - pwercpu_down_write(SB_FREEZE_FS) - super_cache_scan - down_read(&sb->s_umount) - prune_icache_sb - dispose_list - evict - f2fs_evict_inode thaw_super - down_write(&sb->s_umount); - __percpu_down_read(SB_FREEZE_FS) Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-fs-f2fs1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 58bf0dc83712..5a5f3c5445f6 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -458,6 +458,7 @@ Description: Show status of f2fs superblock in real time.
0x800 SBI_QUOTA_SKIP_FLUSH skip flushing quota in current CP
0x1000 SBI_QUOTA_NEED_REPAIR quota file may be corrupted
0x2000 SBI_IS_RESIZEFS resizefs is in process
+ 0x4000 SBI_IS_FREEZING freefs is in process
====== ===================== =================================
What: /sys/fs/f2fs/<disk>/ckpt_thread_ioprio