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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-11 11:34:45 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:16:10 +0200 |
| commit | 9d5b7c956b09daab955fb2a42447d5d89ff15093 (patch) | |
| tree | f2644590e0952ce528fab32226f96557ad91b459 /arch/sh | |
| parent | edf292c76b884a499cc60ad5cdada2663cc39a2f (diff) | |
| download | linux-9d5b7c956b09daab955fb2a42447d5d89ff15093.tar.bz2 | |
mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
Using the ksys_fadvise64_64() helper allows us to avoid the in-kernel
calls to the sys_fadvise64_64() 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 ksys_fadvise64_64().
Some compat stubs called sys_fadvise64(), which then just passed through
the arguments to sys_fadvise64_64(). Get rid of this indirection, and call
ksys_fadvise64_64() directly.
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: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/kernel/sys_sh32.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c index c37ee3d0c803..9dca568509a5 100644 --- a/arch/sh/kernel/sys_sh32.c +++ b/arch/sh/kernel/sys_sh32.c @@ -52,10 +52,10 @@ asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1, u32 len0, u32 len1, int advice) { #ifdef __LITTLE_ENDIAN__ - return sys_fadvise64_64(fd, (u64)offset1 << 32 | offset0, - (u64)len1 << 32 | len0, advice); + return ksys_fadvise64_64(fd, (u64)offset1 << 32 | offset0, + (u64)len1 << 32 | len0, advice); #else - return sys_fadvise64_64(fd, (u64)offset0 << 32 | offset1, - (u64)len0 << 32 | len1, advice); + return ksys_fadvise64_64(fd, (u64)offset0 << 32 | offset1, + (u64)len0 << 32 | len1, advice); #endif } |