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fs: XFS_IOC_FS[SG]SETXATTR to FS_IOC_FS[SG]ETXATTR promotion

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Hoist the ioctl definitions for the XFS_IOC_FS[SG]SETXATTR API from
fs/xfs/libxfs/xfs_fs.h to include/uapi/linux/fs.h so that the ioctls
can be used by all filesystems, not just XFS. This enables
(initially) ext4 to use the ioctl to set project IDs on inodes.

Based-on-patch-from: Li Xi <lixi@ddn.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Dave Chinner 2016-01-04 16:44:15 +11:00 committed by Dave Chinner
parent 168309855a
commit 334e580a6f
2 changed files with 50 additions and 33 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

51
fs/xfs/libxfs/xfs_fs.h
View file

@ -36,38 +36,23 @@ struct dioattr {
#endif
/*
* Structure for XFS_IOC_FSGETXATTR[A] and XFS_IOC_FSSETXATTR.
* Flags for the bs_xflags/fsx_xflags field in FS_IOC_FS[GS]ETXATTR[A]
*/
#ifndef HAVE_FSXATTR
struct fsxattr {
__u32 fsx_xflags; /* xflags field value (get/set) */
__u32 fsx_extsize; /* extsize field value (get/set)*/
__u32 fsx_nextents; /* nextents field value (get) */
__u32 fsx_projid; /* project identifier (get/set) */
unsigned char fsx_pad[12];
};
#endif
/*
* Flags for the bs_xflags/fsx_xflags field
* There should be a one-to-one correspondence between these flags and the
* XFS_DIFLAG_s.
*/
#define XFS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
#define XFS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
#define XFS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
#define XFS_XFLAG_APPEND 0x00000010 /* all writes append */
#define XFS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
#define XFS_XFLAG_NOATIME 0x00000040 /* do not update access time */
#define XFS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
#define XFS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
#define XFS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
#define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
#define XFS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
#define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
#define XFS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
#define XFS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
#define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
#define XFS_XFLAG_REALTIME FS_XFLAG_REALTIME
#define XFS_XFLAG_PREALLOC FS_XFLAG_PREALLOC
#define XFS_XFLAG_IMMUTABLE FS_XFLAG_IMMUTABLE
#define XFS_XFLAG_APPEND FS_XFLAG_APPEND
#define XFS_XFLAG_SYNC FS_XFLAG_SYNC
#define XFS_XFLAG_NOATIME FS_XFLAG_NOATIME
#define XFS_XFLAG_NODUMP FS_XFLAG_NODUMP
#define XFS_XFLAG_RTINHERIT FS_XFLAG_RTINHERIT
#define XFS_XFLAG_PROJINHERIT FS_XFLAG_PROJINHERIT
#define XFS_XFLAG_NOSYMLINKS FS_XFLAG_NOSYMLINKS
#define XFS_XFLAG_EXTSIZE FS_XFLAG_EXTSIZE
#define XFS_XFLAG_EXTSZINHERIT FS_XFLAG_EXTSZINHERIT
#define XFS_XFLAG_NODEFRAG FS_XFLAG_NODEFRAG
#define XFS_XFLAG_FILESTREAM FS_XFLAG_FILESTREAM
#define XFS_XFLAG_HASATTR FS_XFLAG_HASATTR
/*
* Structure for XFS_IOC_GETBMAP.
@ -514,8 +499,8 @@ typedef struct xfs_swapext
#define XFS_IOC_ALLOCSP _IOW ('X', 10, struct xfs_flock64)
#define XFS_IOC_FREESP _IOW ('X', 11, struct xfs_flock64)
#define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr)
#define XFS_IOC_FSGETXATTR _IOR ('X', 31, struct fsxattr)
#define XFS_IOC_FSSETXATTR _IOW ('X', 32, struct fsxattr)
#define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
#define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
#define XFS_IOC_ALLOCSP64 _IOW ('X', 36, struct xfs_flock64)
#define XFS_IOC_FREESP64 _IOW ('X', 37, struct xfs_flock64)
#define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap)

32
include/uapi/linux/fs.h
View file

@ -110,6 +110,36 @@ struct inodes_stat_t {
#define MS_MGC_VAL 0xC0ED0000
#define MS_MGC_MSK 0xffff0000
/*
* Structure for FS_IOC_FSGETXATTR[A] and FS_IOC_FSSETXATTR.
*/
struct fsxattr {
__u32 fsx_xflags; /* xflags field value (get/set) */
__u32 fsx_extsize; /* extsize field value (get/set)*/
__u32 fsx_nextents; /* nextents field value (get) */
__u32 fsx_projid; /* project identifier (get/set) */
unsigned char fsx_pad[12];
};
/*
* Flags for the fsx_xflags field
*/
#define FS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
#define FS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
#define FS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
#define FS_XFLAG_APPEND 0x00000010 /* all writes append */
#define FS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
#define FS_XFLAG_NOATIME 0x00000040 /* do not update access time */
#define FS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
#define FS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
#define FS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
#define FS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
#define FS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
#define FS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
#define FS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
#define FS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
#define FS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
/* the read-only stuff doesn't really belong here, but any other place is
probably as bad and I don't want to create yet another include file. */
@ -169,6 +199,8 @@ struct inodes_stat_t {
#define FS_IOC32_SETFLAGS _IOW('f', 2, int)
#define FS_IOC32_GETVERSION _IOR('v', 1, int)
#define FS_IOC32_SETVERSION _IOW('v', 2, int)
#define FS_IOC_FSGETXATTR _IOR ('X', 31, struct fsxattr)
#define FS_IOC_FSSETXATTR _IOW ('X', 32, struct fsxattr)
/*
* Inode flags (FS_IOC_GETFLAGS / FS_IOC_SETFLAGS)