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SubjectRe: [PATCH 1/4] vfs: create a generic checking function for FS_IOC_SETFLAGS
On Fri, Jun 21, 2019 at 04:56:21PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <>
> Create a generic checking function for the incoming FS_IOC_SETFLAGS flag
> values so that we can standardize the implementations that follow ext4's
> flag values.

I checked a few samples what's the type of the flags, there are unsigned
types while the proposed VFS functions take signed type.

> +int vfs_ioc_setflags_check(struct inode *inode, int oldflags, int flags);

Specifically ext4 uses unsigned type and his was the original API that
got copied so I'd think that it should unsigned everywhere.

> fs/btrfs/ioctl.c | 13 +++++--------

For the btrfs bits

Acked-by: David Sterba <>

and besides the signedness, the rest of the changes look good to me.

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