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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-19 19:51:36 +0300 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 21:16:12 +0300 |
| commit | c7b95d5156a9ee70f800bd2e47a9eba677be73e1 (patch) | |
| tree | a6f4b1d0d4bc5f9be4665034f8cadcce6ac472c5 /arch/x86/ia32 | |
| parent | a90f590a1bee36fc2129cfb38ceec24a555bb12d (diff) | |
| download | linux-c7b95d5156a9ee70f800bd2e47a9eba677be73e1.tar.xz | |
mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead()
Using this helper allows us to avoid the in-kernel calls to the
sys_readahead() 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_readahead().
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/x86/ia32')
| -rw-r--r-- | arch/x86/ia32/sys_ia32.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index bff71b9ae3f5..bd8a7020b9a7 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -203,7 +203,7 @@ COMPAT_SYSCALL_DEFINE6(x86_fadvise64_64, int, fd, __u32, offset_low, COMPAT_SYSCALL_DEFINE4(x86_readahead, int, fd, unsigned int, off_lo, unsigned int, off_hi, size_t, count) { - return sys_readahead(fd, ((u64)off_hi << 32) | off_lo, count); + return ksys_readahead(fd, ((u64)off_hi << 32) | off_lo, count); } COMPAT_SYSCALL_DEFINE6(x86_sync_file_range, int, fd, unsigned int, off_low, |