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authorUlrich Drepper <drepper@redhat.com>2008-05-03 15:10:37 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-03 13:50:33 -0700
commitd35c7b0e54a596c5a8134d75999b7f391a9c6550 (patch)
tree697bb89dbeccae28eb928b2589f500d747ed38ec /arch/arm/kernel
parent2ddcca36c8bcfa251724fe342c8327451988be0d (diff)
downloadop-kernel-dev-d35c7b0e54a596c5a8134d75999b7f391a9c6550.zip
op-kernel-dev-d35c7b0e54a596c5a8134d75999b7f391a9c6550.tar.gz
unified (weak) sys_pipe implementation
This replaces the duplicated arch-specific versions of "sys_pipe()" with one unified implementation. This removes almost 250 lines of duplicated code. It's marked __weak, so that *if* an architecture wants to override the default implementation it can do so by simply having its own replacement version, since many architectures use alternate calling conventions for the 'pipe()' system call for legacy reasons (ie traditional UNIX implementations often return the two file descriptors in registers) I still haven't changed the cris version even though Linus says the BKL isn't needed. The arch maintainer can easily do it if there are really no obstacles. Signed-off-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/sys_arm.c17
1 files changed, 0 insertions, 17 deletions
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index 9bd1870..0128687 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -34,23 +34,6 @@ extern unsigned long do_mremap(unsigned long addr, unsigned long old_len,
unsigned long new_len, unsigned long flags,
unsigned long new_addr);
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-asmlinkage int sys_pipe(unsigned long __user *fildes)
-{
- int fd[2];
- int error;
-
- error = do_pipe(fd);
- if (!error) {
- if (copy_to_user(fildes, fd, 2*sizeof(int)))
- error = -EFAULT;
- }
- return error;
-}
-
/* common code for old and new mmaps */
inline long do_mmap2(
unsigned long addr, unsigned long len,
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