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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-16 14:36:06 +0300 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 21:16:06 +0300 |
| commit | e2aaa9f423367ee03755d632555c242629a08d00 (patch) | |
| tree | c1a4039cf313ab25dcee01b8c90e0fffdd7ff32a /include | |
| parent | 9b32105ec6b13d32d5db6a6e7992c97ce54b5ea7 (diff) | |
| download | linux-e2aaa9f423367ee03755d632555c242629a08d00.tar.xz | |
kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid()
Using this helper allows us to avoid the in-kernel call to the
sys_setsid() 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_setsid().
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: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/syscalls.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index e724dda509e0..4dd685ee425d 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -962,6 +962,7 @@ off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); void ksys_sync(void); int ksys_unshare(unsigned long unshare_flags); +int ksys_setsid(void); /* * The following kernel syscall equivalents are just wrappers to fs-internal |