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authorAl Viro <viro@ZenIV.linux.org.uk>2012-12-02 17:55:07 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-02 10:46:38 -0800
commit9d73fc2d641f8831c9dc803177fe47c02120cc36 (patch)
tree266020ef9f36f1a9e09cb7c84d5058ff735575c1 /arch/s390/kernel
parent3c46f3d6406b1d0c53575774b2d1fd013cd7f76f (diff)
downloadop-kernel-dev-9d73fc2d641f8831c9dc803177fe47c02120cc36.zip
op-kernel-dev-9d73fc2d641f8831c9dc803177fe47c02120cc36.tar.gz
open*(2) compat fixes (s390, arm64)
The usual rules for open()/openat()/open_by_handle_at() are 1) native 32bit - don't force O_LARGEFILE in flags 2) native 64bit - force O_LARGEFILE in flags 3) compat on 64bit host - as for native 32bit 4) native 32bit ABI for 64bit system (mips/n32, x86/x32) - as for native 64bit There are only two exceptions - s390 compat has open() forcing O_LARGEFILE and arm64 compat has open_by_handle_at() doing the same thing. The same binaries on native host (s390/31 and arm resp.) will *not* force O_LARGEFILE, so IMO both are emulation bugs. Objections? The fix is obvious... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/compat_wrapper.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index ad79b84..827e094 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -28,7 +28,7 @@ ENTRY(sys32_open_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
lgfr %r4,%r4 # int
- jg sys_open # branch to system call
+ jg compat_sys_open # branch to system call
ENTRY(sys32_close_wrapper)
llgfr %r2,%r2 # unsigned int
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