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This function will be used in further patch by XFS in XFS_IOC_SETFSXATTRAT ioctl. Signed-off-by: Andrey Albershteyn --- fs/ioctl.c | 11 +++++++++-- include/linux/fileattr.h | 1 + 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/fs/ioctl.c b/fs/ioctl.c index 1d5abfdf0f22..2017c928194e 100644 --- a/fs/ioctl.c +++ b/fs/ioctl.c @@ -559,8 +559,14 @@ int copy_fsxattr_to_user(const struct fileattr *fa, struct fsxattr __user *ufa) } EXPORT_SYMBOL(copy_fsxattr_to_user); -static int copy_fsxattr_from_user(struct fileattr *fa, - struct fsxattr __user *ufa) +/** + * copy_fsxattr_from_user - copy fsxattr from userspace. + * @fa: fileattr pointer + * @ufa: fsxattr user pointer + * + * Return: 0 on success, or -EFAULT on failure. + */ +int copy_fsxattr_from_user(struct fileattr *fa, struct fsxattr __user *ufa) { struct fsxattr xfa; @@ -575,6 +581,7 @@ static int copy_fsxattr_from_user(struct fileattr *fa, return 0; } +EXPORT_SYMBOL(copy_fsxattr_from_user); /* * Generic function to check FS_IOC_FSSETXATTR/FS_IOC_SETFLAGS values and reject diff --git a/include/linux/fileattr.h b/include/linux/fileattr.h index 47c05a9851d0..3c4f8c75abc0 100644 --- a/include/linux/fileattr.h +++ b/include/linux/fileattr.h @@ -34,6 +34,7 @@ struct fileattr { }; int copy_fsxattr_to_user(const struct fileattr *fa, struct fsxattr __user *ufa); +int copy_fsxattr_from_user(struct fileattr *fa, struct fsxattr __user *ufa) void fileattr_fill_xflags(struct fileattr *fa, u32 xflags); void fileattr_fill_flags(struct fileattr *fa, u32 flags); -- 2.42.0