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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-19 17:32:11 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:16:08 +0200
commitdf260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed (patch)
tree8731b85570ffef662667b01e33769f9d9d2c2baa /arch/s390/kernel
parentfs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall (diff)
downloadlinux-df260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed.tar.xz
linux-df260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed.zip
fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate()
Using the ksys_truncate() wrapper allows us to get rid of in-kernel calls to the sys_truncate() 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_truncate(). 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: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/compat_linux.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 605f6f026e44..e4092ec17ea5 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -302,7 +302,7 @@ COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, compat_ulong_t, second,
COMPAT_SYSCALL_DEFINE3(s390_truncate64, const char __user *, path, u32, high, u32, low)
{
- return sys_truncate(path, (unsigned long)high << 32 | low);
+ return ksys_truncate(path, (unsigned long)high << 32 | low);
}
COMPAT_SYSCALL_DEFINE3(s390_ftruncate64, unsigned int, fd, u32, high, u32, low)