> +/* open_tree() */
> +#ifndef OPEN_TREE_CLONE
> +#define OPEN_TREE_CLONE 1
> +#endif
> +
> +#ifndef OPEN_TREE_CLOEXEC
> +#define OPEN_TREE_CLOEXEC O_CLOEXEC
> +#endif
> +
> +#ifndef __NR_open_tree
> + #if defined __alpha__
> + #define __NR_open_tree 538
> + #elif defined _MIPS_SIM
> + #if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
> + #define __NR_open_tree 4428
> + #endif
> + #if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
> + #define __NR_open_tree 6428
> + #endif
> + #if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
> + #define __NR_open_tree 5428
> + #endif
> + #elif defined __ia64__
> + #define __NR_open_tree (428 + 1024)
> + #else
> + #define __NR_open_tree 428
> + #endif
> +#endif
> +
> +/* move_mount() */
> +#ifndef MOVE_MOUNT_F_EMPTY_PATH
> +#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */
> +#endif
> +
> +#ifndef __NR_move_mount
> + #if defined __alpha__
> + #define __NR_move_mount 539
> + #elif defined _MIPS_SIM
> + #if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
> + #define __NR_move_mount 4429
> + #endif
> + #if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
> + #define __NR_move_mount 6429
> + #endif
> + #if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
> + #define __NR_move_mount 5429
> + #endif
> + #elif defined __ia64__
> + #define __NR_move_mount (428 + 1024)
> + #else
> + #define __NR_move_mount 429
> + #endif
> +#endif
> +
> +static inline int sys_open_tree(int dfd, const char *filename, unsigned int flags)
> +{
> + return syscall(__NR_open_tree, dfd, filename, flags);
> +}
> +
> +static inline int sys_move_mount(int from_dfd, const char *from_pathname, int to_dfd,
> + const char *to_pathname, unsigned int flags)
> +{
> + return syscall(__NR_move_mount, from_dfd, from_pathname, to_dfd, to_pathname, flags);
> +}
Not directly new in your patch, but I wish we'd have a central header
for missing UAPI bits in xfstests instead of spreading it over
various files.
Otherwise looks good:
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
