diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-07-28 11:54:32 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-08-20 10:12:34 +1000 |
| commit | dd90bbd5fb763ab8924135a30956030c7a7b94fc (patch) | |
| tree | e8cb73517611d26b74086025958e88404994f028 /arch/powerpc/include | |
| parent | c79b29735d28d819380b584d6707b4110ee759f3 (diff) | |
powerpc: Add compat_sys_truncate
The truncate syscall has a signed long parameter, so when using a 32-
bit userspace with a 64-bit kernel the argument is zero-extended
instead of sign-extended. Adding the compat_sys_truncate function
fixes the issue.
This was noticed during an LSB truncate test failure. The test was
checking for the correct error number set when truncate is called with
a length of -1. The test can be found at:
http://bzr.linuxfoundation.org/lsb/devel/runtime-test?cmd=inventory;rev=stewb%40linux-foundation.org-20090626205411-sfb23cc0tjj7jzgm;path=modules/vsx-pcts/tset/POSIX.os/files/truncate/
BenH: Added compat_sys_ftruncate() as well, same issue.
Signed-off-by: Chase Douglas <cndougla@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/systbl.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index 370600ca276..ed24bd92fe4 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -95,8 +95,8 @@ SYSCALL(reboot) SYSX(sys_ni_syscall,compat_sys_old_readdir,sys_old_readdir) SYSCALL_SPU(mmap) SYSCALL_SPU(munmap) -SYSCALL_SPU(truncate) -SYSCALL_SPU(ftruncate) +COMPAT_SYS_SPU(truncate) +COMPAT_SYS_SPU(ftruncate) SYSCALL_SPU(fchmod) SYSCALL_SPU(fchown) COMPAT_SYS_SPU(getpriority) |