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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-11 13:34:46 +0300 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 21:16:11 +0300 |
| commit | a90f590a1bee36fc2129cfb38ceec24a555bb12d (patch) | |
| tree | 42e18715d5070d0f428464ba40b4ed136363f6e2 /arch/microblaze | |
| parent | 9d5b7c956b09daab955fb2a42447d5d89ff15093 (diff) | |
| download | linux-a90f590a1bee36fc2129cfb38ceec24a555bb12d.tar.xz | |
mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff()
Using this helper allows us to avoid the in-kernel calls to the
sys_mmap_pgoff() 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_mmap_pgoff().
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/microblaze')
| -rw-r--r-- | arch/microblaze/kernel/sys_microblaze.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c index f1e1f666ddde..ed9f34da1a2a 100644 --- a/arch/microblaze/kernel/sys_microblaze.c +++ b/arch/microblaze/kernel/sys_microblaze.c @@ -40,7 +40,7 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, if (pgoff & ~PAGE_MASK) return -EINVAL; - return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT); + return ksys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT); } SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, @@ -50,6 +50,6 @@ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, if (pgoff & (~PAGE_MASK >> 12)) return -EINVAL; - return sys_mmap_pgoff(addr, len, prot, flags, fd, - pgoff >> (PAGE_SHIFT - 12)); + return ksys_mmap_pgoff(addr, len, prot, flags, fd, + pgoff >> (PAGE_SHIFT - 12)); } |