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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-19 19:38:31 +0300
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 21:16:09 +0300
commit36028d5dd71175c332ab634e089e16dbdfe3812b (patch)
treed25084dfe2fe7c0a070cad40333a365af076695c /arch/sh
parentdf260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed (diff)
downloadlinux-36028d5dd71175c332ab634e089e16dbdfe3812b.tar.xz
fs: add ksys_p{read,write}64() helpers; remove in-kernel calls to syscalls
Using the ksys_p{read,write}64() wrappers allows us to get rid of in-kernel calls to the sys_pread64() and sys_pwrite64() syscalls. 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_p{read,write}64(). 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 'arch/sh')
-rw-r--r--arch/sh/kernel/sys_sh32.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c
index f8dc8bfd4606..c37ee3d0c803 100644
--- a/arch/sh/kernel/sys_sh32.c
+++ b/arch/sh/kernel/sys_sh32.c
@@ -39,13 +39,13 @@ asmlinkage int sys_sh_pipe(void)
asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf,
size_t count, long dummy, loff_t pos)
{
- return sys_pread64(fd, buf, count, pos);
+ return ksys_pread64(fd, buf, count, pos);
}
asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf,
size_t count, long dummy, loff_t pos)
{
- return sys_pwrite64(fd, buf, count, pos);
+ return ksys_pwrite64(fd, buf, count, pos);
}
asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,