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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-11 11:34:45 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:16:10 +0200
commit9d5b7c956b09daab955fb2a42447d5d89ff15093 (patch)
treef2644590e0952ce528fab32226f96557ad91b459 /arch/parisc
parentedf292c76b884a499cc60ad5cdada2663cc39a2f (diff)
downloadop-kernel-dev-9d5b7c956b09daab955fb2a42447d5d89ff15093.zip
op-kernel-dev-9d5b7c956b09daab955fb2a42447d5d89ff15093.tar.gz
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/parisc')
-rw-r--r--arch/parisc/kernel/sys_parisc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 588fab3..f36ab1f 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -352,7 +352,7 @@ asmlinkage long parisc_fadvise64_64(int fd,
unsigned int high_off, unsigned int low_off,
unsigned int high_len, unsigned int low_len, int advice)
{
- return sys_fadvise64_64(fd, (loff_t)high_off << 32 | low_off,
+ return ksys_fadvise64_64(fd, (loff_t)high_off << 32 | low_off,
(loff_t)high_len << 32 | low_len, advice);
}
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