d896f71ce1
This tests both statmount and listmount to make sure they work with the extensions that allow us to specify a mount ns to enter in order to find the mount entries. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/2d1a35bc9ab94b4656c056c420f25e429e7eb0b1.1719243756.git.josef@toxicpanda.com Signed-off-by: Christian Brauner <brauner@kernel.org>
46 lines
984 B
C
46 lines
984 B
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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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 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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