linux.git/arch/x86/syscalls, branch v3.10.76 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git x86, x32: Use compat shims for io_{setup,submit} 2014-07-01T03:09:45+00:00 Mike Frysinger vapier@gentoo.org 2014-05-05T00:43:15+00:00 1790b2dd037e286b2b01c6254081cf349b72a003 commit 7fd44dacdd803c0bbf38bf478d51d280902bb0f1 upstream. The io_setup takes a pointer to a context id of type aio_context_t. This in turn is typed to a __kernel_ulong_t. We could tweak the exported headers to define this as a 64bit quantity for specific ABIs, but since we already have a 32bit compat shim for the x86 ABI, let's just re-use that logic. The libaio package is also written to expect this as a pointer type, so a compat shim would simplify that. The io_submit func operates on an array of pointers to iocb structs. Padding out the array to be 64bit aligned is a huge pain, so convert it over to the existing compat shim too. We don't convert io_getevents to the compat func as its only purpose is to handle the timespec struct, and the x32 ABI uses 64bit times. With this change, the libaio package can now pass its testsuite when built for the x32 ABI. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Link: http://lkml.kernel.org/r/1399250595-5005-1-git-send-email-vapier@gentoo.org Cc: H.J. Lu <hjl.tools@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 7fd44dacdd803c0bbf38bf478d51d280902bb0f1 upstream.

The io_setup takes a pointer to a context id of type aio_context_t.
This in turn is typed to a __kernel_ulong_t.  We could tweak the
exported headers to define this as a 64bit quantity for specific
ABIs, but since we already have a 32bit compat shim for the x86 ABI,
let's just re-use that logic.  The libaio package is also written to
expect this as a pointer type, so a compat shim would simplify that.

The io_submit func operates on an array of pointers to iocb structs.
Padding out the array to be 64bit aligned is a huge pain, so convert
it over to the existing compat shim too.

We don't convert io_getevents to the compat func as its only purpose
is to handle the timespec struct, and the x32 ABI uses 64bit times.

With this change, the libaio package can now pass its testsuite when
built for the x32 ABI.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Link: http://lkml.kernel.org/r/1399250595-5005-1-git-send-email-vapier@gentoo.org
Cc: H.J. Lu <hjl.tools@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE 2013-05-09T17:46:38+00:00 Al Viro viro@zeniv.linux.org.uk 2013-03-06T01:10:59+00:00 91c2e0bcae72a3086c698b5de2b950b885abb0e6 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
x86: sys32_kill and sys32_mprotect are pointless 2013-03-04T04:00:33+00:00 Al Viro viro@zeniv.linux.org.uk 2013-02-24T19:00:48+00:00 07b053457b5faea05630c119baffa7c61c515fe4 their argument types are identical to those of sys_kill and sys_mprotect resp., so we are not doing any kind of argument validation, etc. in those - they turn into unconditional branches to corresponding syscalls. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
their argument types are identical to those of sys_kill and sys_mprotect
resp., so we are not doing any kind of argument validation, etc. in those -
they turn into unconditional branches to corresponding syscalls.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
merge compat sys_ipc instances 2013-03-04T04:00:27+00:00 Al Viro viro@zeniv.linux.org.uk 2013-01-22T04:15:25+00:00 56e41d3c5aa84d679eebdb3cb8a70b03c5fbd6c3 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
consolidate compat lookup_dcookie() 2013-03-04T04:00:23+00:00 Al Viro viro@zeniv.linux.org.uk 2013-02-25T23:42:04+00:00 d5dc77bfeeab0b03a32e3db5e31e2f64605634ab Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
convert sendfile{,64} to COMPAT_SYSCALL_DEFINE 2013-03-04T03:58:46+00:00 Al Viro viro@zeniv.linux.org.uk 2013-02-24T07:17:03+00:00 19f4fc3aee180000fe45952691bbe69dde1d9e95 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fix compat truncate/ftruncate 2013-02-25T14:24:55+00:00 Al Viro viro@zeniv.linux.org.uk 2013-02-24T18:49:08+00:00 3f6d078d4accfff8b114f968259a060bfdc7c682 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
switch lseek to COMPAT_SYSCALL_DEFINE 2013-02-24T15:52:26+00:00 Al Viro viro@zeniv.linux.org.uk 2013-02-24T15:52:26+00:00 561c6731978fa128f29342495f47fc3365898b3d Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
x86: switch to generic old sigaction 2013-02-03T23:16:27+00:00 Al Viro viro@zeniv.linux.org.uk 2012-12-26T00:14:55+00:00 5b3eb3ade4444c3b1419ffa23598a57f6f4bf494 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
x86: switch to generic compat rt_sigaction() 2013-02-03T23:16:26+00:00 Al Viro viro@zeniv.linux.org.uk 2012-12-25T23:42:26+00:00 29fd448084e2da6d19ab675cf01d4a65fe2fcc44 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>