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authorChangman Lee <cm224.lee@samsung.com>2013-01-29 18:30:07 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-02-12 07:15:00 +0900
commitd6212a5f18c8f9f9cc884070a96e11907711217f (patch)
treed1c579ecdeb7c2ffc94bffbe0b51af4d2e3c49f3 /fs/f2fs/inode.c
parenta2617dc6863b21a8109c199ab533b3dbfe178f27 (diff)
f2fs: add un/freeze_fs into super_operations
This patch supports ioctl FIFREEZE and FITHAW to snapshot filesystem. Before calling f2fs_freeze, all writers would be suspended and sync_fs would be completed. So no f2fs has to do something. Just background gc operation should be skipped due to generate dirty nodes and data until unfreeze. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/inode.c')
-rw-r--r--fs/f2fs/inode.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 340a21be5a7..62433c63e2d 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -278,6 +278,7 @@ void f2fs_evict_inode(struct inode *inode)
if (inode->i_nlink || is_bad_inode(inode))
goto no_delete;
+ sb_start_intwrite(inode->i_sb);
set_inode_flag(F2FS_I(inode), FI_NO_ALLOC);
i_size_write(inode, 0);
@@ -285,6 +286,7 @@ void f2fs_evict_inode(struct inode *inode)
f2fs_truncate(inode);
remove_inode_page(inode);
+ sb_end_intwrite(inode->i_sb);
no_delete:
clear_inode(inode);
}