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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/parisc
parent806cbae1228cc1a19b978c4513f6851e9ab7f388 (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.c6
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,