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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-20 20:07:53 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:15:24 +0200
commit65749e0bb5e7de876ee43d3f601e32afe17e9248 (patch)
treeb660b2e32014e8fb2a405c7d75f7dba0095e1f49 /ipc/syscall.c
parentipc: add msgget syscall wrapper (diff)
downloadlinux-dev-65749e0bb5e7de876ee43d3f601e32afe17e9248.tar.xz
linux-dev-65749e0bb5e7de876ee43d3f601e32afe17e9248.zip
ipc: add shmget syscall wrapper
Provide ksys_shmget() wrapper to avoid in-kernel calls to this 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_shmget(). 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/syscall.c')
-rw-r--r--ipc/syscall.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ipc/syscall.c b/ipc/syscall.c
index 355c4a644bbf..60bceb19b6f0 100644
--- a/ipc/syscall.c
+++ b/ipc/syscall.c
@@ -92,7 +92,7 @@ SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second,
case SHMDT:
return sys_shmdt((char __user *)ptr);
case SHMGET:
- return sys_shmget(first, second, third);
+ return ksys_shmget(first, second, third);
case SHMCTL:
return sys_shmctl(first, second,
(struct shmid_ds __user *) ptr);
@@ -180,7 +180,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
case SHMDT:
return sys_shmdt(compat_ptr(ptr));
case SHMGET:
- return sys_shmget(first, (unsigned)second, third);
+ return ksys_shmget(first, (unsigned int)second, third);
case SHMCTL:
return compat_sys_shmctl(first, second, compat_ptr(ptr));
}