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b13fb4ee46
Copy the required headers files (mount.h, nsfs.h) to the tools include dir and define the statmount/listmount syscall numbers to decouple dependency with headers_install for the common cases. Reviewed-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Link: https://lore.kernel.org/20250509133240.529330-3-amir73il@gmail.com Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __STATMOUNT_H
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#define __STATMOUNT_H
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#include <stdint.h>
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#include <linux/mount.h>
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#include <asm/unistd.h>
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#ifndef __NR_statmount
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#if defined __alpha__
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#define __NR_statmount 567
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#elif defined _MIPS_SIM
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#if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
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#define __NR_statmount 4457
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#endif
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#if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
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#define __NR_statmount 6457
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#endif
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#if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
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#define __NR_statmount 5457
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#endif
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#else
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#define __NR_statmount 457
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#endif
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#endif
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#ifndef __NR_listmount
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#if defined __alpha__
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#define __NR_listmount 568
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#elif defined _MIPS_SIM
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#if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
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#define __NR_listmount 4458
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#endif
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#if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
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#define __NR_listmount 6458
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#endif
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#if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
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#define __NR_listmount 5458
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#endif
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#else
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#define __NR_listmount 458
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#endif
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#endif
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static inline int statmount(uint64_t mnt_id, uint64_t mnt_ns_id, uint64_t mask,
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struct statmount *buf, size_t bufsize,
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unsigned int flags)
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{
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struct mnt_id_req req = {
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.size = MNT_ID_REQ_SIZE_VER0,
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.mnt_id = mnt_id,
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.param = mask,
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};
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if (mnt_ns_id) {
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req.size = MNT_ID_REQ_SIZE_VER1;
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req.mnt_ns_id = mnt_ns_id;
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}
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return syscall(__NR_statmount, &req, buf, bufsize, flags);
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}
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static inline ssize_t listmount(uint64_t mnt_id, uint64_t mnt_ns_id,
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uint64_t last_mnt_id, uint64_t list[], size_t num,
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unsigned int flags)
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{
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struct mnt_id_req req = {
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.size = MNT_ID_REQ_SIZE_VER0,
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.mnt_id = mnt_id,
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.param = last_mnt_id,
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};
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if (mnt_ns_id) {
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req.size = MNT_ID_REQ_SIZE_VER1;
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req.mnt_ns_id = mnt_ns_id;
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}
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return syscall(__NR_listmount, &req, list, num, flags);
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}
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#endif /* __STATMOUNT_H */
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