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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-20 20:09:48 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:15:25 +0200
commitda1e2744341542e404c172bcf6a321f509408b14 (patch)
treee2404117362bb519750e1f18b4d513c1958fab1b /ipc/util.h
parent65749e0bb5e7de876ee43d3f601e32afe17e9248 (diff)
ipc: add shmdt syscall wrapper
Provide ksys_shmdt() 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_shmdt(). 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.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/ipc/util.h b/ipc/util.h
index 51002c0b2a21..7770bcad1168 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -244,6 +244,7 @@ long ksys_semget(key_t key, int nsems, int semflg);
long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg);
long ksys_msgget(key_t key, int msgflg);
long ksys_shmget(key_t key, size_t size, int shmflg);
+long ksys_shmdt(char __user *shmaddr);
/* for CONFIG_ARCH_WANT_OLD_COMPAT_IPC */
#ifdef CONFIG_COMPAT

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