diff options
| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-20 20:00:39 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:15:22 +0200 |
| commit | d969c6fa7263c8fc1928f528bb68587872350b6c (patch) | |
| tree | ea96ad301cb9b73b87838e925411bb7e4d111ce4 /ipc/util.h | |
| parent | 69894718a515fef7ff633cf354fcd7ed73a88891 (diff) | |
| download | linux-d969c6fa7263c8fc1928f528bb68587872350b6c.tar.gz | |
ipc: add semctl syscall/compat_syscall wrappers
Provide ksys_semctl() and compat_ksys_semctl() wrappers to avoid in-kernel calls to these syscalls. The ksys_ prefix denotes that these functions are meant as a drop-in replacement for the syscalls. In particular, they use the same calling convention as sys_semctl() and compat_sys_semctl(). 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> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'ipc/util.h')
| -rw-r--r-- | ipc/util.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ipc/util.h b/ipc/util.h index 0f07056e5a73..1f1109b83437 100644 --- a/ipc/util.h +++ b/ipc/util.h @@ -241,12 +241,14 @@ long ksys_semtimedop(int semid, struct sembuf __user *tsops, unsigned int nsops, const struct timespec __user *timeout); long ksys_semget(key_t key, int nsems, int semflg); +long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg); /* for CONFIG_ARCH_WANT_OLD_COMPAT_IPC */ #ifdef CONFIG_COMPAT long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, unsigned int nsops, const struct compat_timespec __user *timeout); +long compat_ksys_semctl(int semid, int semnum, int cmd, int arg); #endif /* CONFIG_COMPAT */ #endif |