f2fs: do not allow to defragment files have FI_COMPRESS_RELEASED

[ Upstream commit 7cd2e5f75b86a1befa99834f3ed1d735eeff69e6 ]

If a file has FI_COMPRESS_RELEASED, all writes for it should not be
allowed.

Fixes: 5fdb322ff2c2 ("f2fs: add F2FS_IOC_DECOMPRESS_FILE and F2FS_IOC_COMPRESS_FILE")
Signed-off-by: Qi Han <hanqi@vivo.com>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index dbad2db..370c408 100644 (file)
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2588,6 +2588,11 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 
        inode_lock(inode);
 
+       if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
+               err = -EINVAL;
+               goto unlock_out;
+       }
+
        /* if in-place-update policy is enabled, don't waste time here */
        set_inode_flag(inode, FI_OPU_WRITE);
        if (f2fs_should_update_inplace(inode, NULL)) {
@@ -2712,6 +2717,7 @@ clear_out:
        clear_inode_flag(inode, FI_SKIP_WRITES);
 out:
        clear_inode_flag(inode, FI_OPU_WRITE);
+unlock_out:
        inode_unlock(inode);
        if (!err)
                range->len = (u64)total << PAGE_SHIFT;