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| author |   Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-19 17:32:11 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:16:08 +0200 |
| commit | df260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed (patch) | |
| tree | 8731b85570ffef662667b01e33769f9d9d2c2baa /arch/x86/ia32 | |
| parent | fs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall (diff) | |
| download | linux-dev-df260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed.tar.xz linux-dev-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/x86/ia32')
| -rw-r--r-- | arch/x86/ia32/sys_ia32.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index 0c5f8932c136..90e7a2b3dc5b 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -55,7 +55,8 @@ COMPAT_SYSCALL_DEFINE3(x86_truncate64, const char __user *, filename, unsigned long, offset_low, unsigned long, offset_high) { - return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low); + return ksys_truncate(filename, + ((loff_t) offset_high << 32) | offset_low); } COMPAT_SYSCALL_DEFINE3(x86_ftruncate64, unsigned int, fd, |