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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-19 19:46:32 +0300
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 21:16:09 +0300
commitedf292c76b884a499cc60ad5cdada2663cc39a2f (patch)
tree834848d30e257f66bf879a49a358438f05172166 /arch
parent36028d5dd71175c332ab634e089e16dbdfe3812b (diff)
downloadlinux-edf292c76b884a499cc60ad5cdada2663cc39a2f.tar.xz
fs: add ksys_fallocate() wrapper; remove in-kernel calls to sys_fallocate()
Using the ksys_fallocate() wrapper allows us to get rid of in-kernel calls to the sys_fallocate() 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_fallocate(). 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')
-rw-r--r--arch/mips/kernel/linux32.c4
-rw-r--r--arch/parisc/kernel/sys_parisc.c4
-rw-r--r--arch/powerpc/kernel/sys_ppc32.c2
-rw-r--r--arch/s390/kernel/compat_linux.c4
-rw-r--r--arch/sparc/kernel/sys_sparc32.c4
-rw-r--r--arch/x86/ia32/sys_ia32.c4
6 files changed, 11 insertions, 11 deletions
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 91e85e2f8aa5..0779d474c8ad 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -157,6 +157,6 @@ asmlinkage long sys32_fadvise64_64(int fd, int __pad,
asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_a2,
unsigned offset_a3, unsigned len_a4, unsigned len_a5)
{
- return sys_fallocate(fd, mode, merge_64(offset_a2, offset_a3),
- merge_64(len_a4, len_a5));
+ return ksys_fallocate(fd, mode, merge_64(offset_a2, offset_a3),
+ merge_64(len_a4, len_a5));
}
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 4f47e8379854..588fab336ddd 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -367,8 +367,8 @@ asmlinkage long parisc_sync_file_range(int fd,
asmlinkage long parisc_fallocate(int fd, int mode, u32 offhi, u32 offlo,
u32 lenhi, u32 lenlo)
{
- return sys_fallocate(fd, mode, ((u64)offhi << 32) | offlo,
- ((u64)lenhi << 32) | lenlo);
+ return ksys_fallocate(fd, mode, ((u64)offhi << 32) | offlo,
+ ((u64)lenhi << 32) | lenlo);
}
long parisc_personality(unsigned long personality)
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index 36a651e6e033..68f11e1065f8 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -100,7 +100,7 @@ asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4,
asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
u32 lenhi, u32 lenlo)
{
- return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
+ return ksys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
((loff_t)lenhi << 32) | lenlo);
}
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 71e2c5bc4926..039858f9f128 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -516,6 +516,6 @@ COMPAT_SYSCALL_DEFINE6(s390_sync_file_range, int, fd, u32, offhigh, u32, offlow,
COMPAT_SYSCALL_DEFINE6(s390_fallocate, int, fd, int, mode, u32, offhigh, u32, offlow,
u32, lenhigh, u32, lenlow)
{
- return sys_fallocate(fd, mode, ((loff_t)offhigh << 32) + offlow,
- ((u64)lenhigh << 32) + lenlow);
+ return ksys_fallocate(fd, mode, ((loff_t)offhigh << 32) + offlow,
+ ((u64)lenhigh << 32) + lenlow);
}
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 40c0d2e1db1d..4ba62d676632 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -250,6 +250,6 @@ long sys32_sync_file_range(unsigned int fd, unsigned long off_high, unsigned lon
asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
u32 lenhi, u32 lenlo)
{
- return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
- ((loff_t)lenhi << 32) | lenlo);
+ return ksys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
+ ((loff_t)lenhi << 32) | lenlo);
}
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index c08c25f73d79..df2acb13623f 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -226,8 +226,8 @@ COMPAT_SYSCALL_DEFINE6(x86_fallocate, int, fd, int, mode,
unsigned int, offset_lo, unsigned int, offset_hi,
unsigned int, len_lo, unsigned int, len_hi)
{
- return sys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo,
- ((u64)len_hi << 32) | len_lo);
+ return ksys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo,
+ ((u64)len_hi << 32) | len_lo);
}
/*