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| author | Dominik Brodowski | 2018-03-11 11:34:39 +0100 |
|---|---|---|
| committer | Dominik Brodowski | 2018-04-02 20:15:48 +0200 |
| commit | 312db1aa1dc7bff133d95c92efcc5e42b57cefa6 (patch) | |
| tree | e62c8c554db9e30e7676d847fa75d189231895de /include/linux/syscalls.h | |
| parent | fs/quota: use COMPAT_SYSCALL_DEFINE for sys32_quotactl() (diff) | |
| download | kernel-qcow2-linux-312db1aa1dc7bff133d95c92efcc5e42b57cefa6.tar.gz kernel-qcow2-linux-312db1aa1dc7bff133d95c92efcc5e42b57cefa6.tar.xz kernel-qcow2-linux-312db1aa1dc7bff133d95c92efcc5e42b57cefa6.zip | |
fs: add ksys_mount() helper; remove in-kernel calls to sys_mount()
Using this helper allows us to avoid the in-kernel calls to the sys_mount()
syscall. The ksys_ prefix denotes that this function is meant as a drop-in
replacement for the syscall. In particular, it uses the same calling
convention as sys_mount().
In the near future, all callers of ksys_mount() should be converted to call
do_mount() directly.
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'include/linux/syscalls.h')
| -rw-r--r-- | include/linux/syscalls.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 6ab7ed71a8b6..3a9f9c534624 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -946,4 +946,7 @@ asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, * the ksys_xyzyyz() functions prototyped below. */ +int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type, + unsigned long flags, void __user *data); + #endif |