diff options
| 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/parisc | |
| parent | 806cbae1228cc1a19b978c4513f6851e9ab7f388 (diff) | |
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/parisc')
| -rw-r--r-- | arch/parisc/kernel/sys_parisc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index ef995b5d97ef..3377a00163c3 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -292,7 +292,7 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, asmlinkage long parisc_truncate64(const char __user * path, unsigned int high, unsigned int low) { - return sys_truncate(path, (long)high << 32 | low); + return ksys_truncate(path, (long)high << 32 | low); } asmlinkage long parisc_ftruncate64(unsigned int fd, @@ -305,7 +305,7 @@ asmlinkage long parisc_ftruncate64(unsigned int fd, * are identical on LP64 */ asmlinkage long sys_truncate64(const char __user * path, unsigned long length) { - return sys_truncate(path, length); + return ksys_truncate(path, length); } asmlinkage long sys_ftruncate64(unsigned int fd, unsigned long length) { @@ -320,7 +320,7 @@ asmlinkage long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg asmlinkage long parisc_truncate64(const char __user * path, unsigned int high, unsigned int low) { - return sys_truncate64(path, (loff_t)high << 32 | low); + return ksys_truncate(path, (loff_t)high << 32 | low); } asmlinkage long parisc_ftruncate64(unsigned int fd, |