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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-11 13:34:46 +0300
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 21:16:11 +0300
commita90f590a1bee36fc2129cfb38ceec24a555bb12d (patch)
tree42e18715d5070d0f428464ba40b4ed136363f6e2 /arch/x86/kernel/sys_x86_64.c
parent9d5b7c956b09daab955fb2a42447d5d89ff15093 (diff)
downloadlinux-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/x86/kernel/sys_x86_64.c')
-rw-r--r--arch/x86/kernel/sys_x86_64.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 676774b9bb8d..a3f15ed545b5 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -97,7 +97,7 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
if (off & ~PAGE_MASK)
goto out;
- error = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
+ error = ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
out:
return error;
}