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09267defa3
Like ksys_umount, but takes a kernel pointer for the destination path. Switch over the umount in the init code, which just happen to work due to the implicit set_fs(KERNEL_DS) during early init right now. Signed-off-by: Christoph Hellwig <hch@lst.de>
39 lines
963 B
C
39 lines
963 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Routines that mimic syscalls, but don't use the user address space or file
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* descriptors. Only for init/ and related early init code.
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*/
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#include <linux/init.h>
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#include <linux/mount.h>
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#include <linux/namei.h>
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#include <linux/fs.h>
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#include <linux/init_syscalls.h>
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#include "internal.h"
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int __init init_mount(const char *dev_name, const char *dir_name,
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const char *type_page, unsigned long flags, void *data_page)
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{
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struct path path;
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int ret;
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ret = kern_path(dir_name, LOOKUP_FOLLOW, &path);
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if (ret)
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return ret;
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ret = path_mount(dev_name, &path, type_page, flags, data_page);
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path_put(&path);
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return ret;
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}
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int __init init_umount(const char *name, int flags)
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{
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int lookup_flags = LOOKUP_MOUNTPOINT;
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struct path path;
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int ret;
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if (!(flags & UMOUNT_NOFOLLOW))
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lookup_flags |= LOOKUP_FOLLOW;
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ret = kern_path(name, lookup_flags, &path);
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if (ret)
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return ret;
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return path_umount(&path, flags);
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}
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