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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-14 22:35:11 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:16:05 +0200
commit70f68ee81e2e9ad5105b8d2bd324e890e94c6ad9 (patch)
treee25ed255335d406923a23c38aa5980590ffefae4 /include
parent3ce4a7bf66263748194b77ccefd284be963c6304 (diff)
downloadlinux-70f68ee81e2e9ad5105b8d2bd324e890e94c6ad9.tar.bz2
fs: add ksys_sync() helper; remove in-kernel calls to sys_sync()
Using this helper allows us to avoid the in-kernel calls to the sys_sync() 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_sync(). 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')
-rw-r--r--include/linux/syscalls.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 3a2e90842ff8..0a9942b3e718 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -960,6 +960,7 @@ int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
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);
/*
* The following kernel syscall equivalents are just wrappers to fs-internal