Evolution-X-Devices/kernel_nothing_sm7325
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BACKPORT: f2fs: make file immutable even if releasing zero compression block

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commit 567c4bf54a85 upstream.

When we use F2FS_IOC_RELEASE_COMPRESS_BLOCKS ioctl, if we can't find
any compressed blocks in the file even with large file size, the
ioctl just ends up without changing the file's status as immutable.
It makes the user, who expects that the file is immutable when it
returns successfully, confused.

Bug: 237904436
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Change-Id: I2c96428442e69b69c7064096d2e1ce8e2b99cc09
This commit is contained in:
Daeho Jeong
2020-07-30 14:09:28 +09:00
committed by Greg Kroah-Hartman
parent 3cf0f8245d
commit 8629059128
1 changed files with 3 additions and 3 deletions
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6
fs/f2fs/file.c
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@@ -3528,14 +3528,14 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
if (ret)
goto out;
if (!F2FS_I(inode)->i_compr_blocks)
goto out;
F2FS_I(inode)->i_flags |= F2FS_IMMUTABLE_FL;
f2fs_set_inode_flags(inode);
inode->i_ctime = current_time(inode);
f2fs_mark_inode_dirty_sync(inode, true);
if (!F2FS_I(inode)->i_compr_blocks)
goto out;
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
down_write(&F2FS_I(inode)->i_mmap_sem);