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f2fs: use generic checking and prep function for FS_IOC_SETFLAGS

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Make the f2fs implementation of FS_IOC_SETFLAGS use the new VFS helper
function vfs_ioc_setflags_prepare().

This is based on a patch from Darrick Wong, but reworked to apply after
commit 360985573b ("f2fs: separate f2fs i_flags from fs_flags and ext4
i_flags").

Originally-from: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Eric Biggers 2019-07-01 13:26:28 -07:00 committed by Jaegeuk Kim
parent 964a4eacef
commit a1f32eeca6
1 changed files with 8 additions and 1 deletions
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9
fs/f2fs/file.c
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@ -1770,7 +1770,8 @@ static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
u32 fsflags;
struct f2fs_inode_info *fi = F2FS_I(inode);
u32 fsflags, old_fsflags;
u32 iflags;
int ret;
@ -1794,8 +1795,14 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
inode_lock(inode);
old_fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
ret = vfs_ioc_setflags_prepare(inode, old_fsflags, fsflags);
if (ret)
goto out;
ret = f2fs_setflags_common(inode, iflags,
f2fs_fsflags_to_iflags(F2FS_SETTABLE_FS_FL));
out:
inode_unlock(inode);
mnt_drop_write_file(filp);
return ret;