| 2c81fc4fb41f589454861bbdb90ffde73840b8f8 |
|
01-Mar-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: add sync_file_range and fallocate compat syscalls
The compat syscall wrappers for sync_file_range and fallocate merged 32 bit
parameters into 64 bit parameters. Therefore they did more than just the
usual zero and/or sign extension of system call parameters.
So convert these two wrappers to full s390 specific compat sytem calls.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| 5383d2c8b3ee61a762043818d7c07bbc0049b031 |
|
26-Feb-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 7
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| a0f8c6da8f3da63283e978ebece03e81d107b1d0 |
|
26-Feb-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 6
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| 52a0b536a3addcfe20325303b2dddc2538019476 |
|
26-Feb-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 5
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| e723e0cc17f8d8573b19a809277d81cecdd6e92b |
|
26-Feb-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 4
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| 4ca2ea58c8421784bdad43b05e9939549e4d34e9 |
|
25-Feb-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 3
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| 208096eee2fa44de0464e1f3c1f0c1ca1afe67ad |
|
25-Feb-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 2
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| c6c0f58f90cb8e159702ccc08772bc9221f1c35e |
|
25-Feb-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 1
Convert s390 specific system calls to to the new COMPAT_SYSCALL_DEFINE macro.
This allows us to get rid of the assembly compat wrappers.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| 49382d93852f1ba4a4fbbce20d094f600cc8aff8 |
|
29-Jan-2014 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: change parameter types from unsigned long to compat_ulong_t
Change parameter types of s390's compat ipc syscall from unsigned long
to compat_ulong_t to enforce zero extension of these parameters.
This is not really a bug, since s390_ipc compat syscall is only a
wrapper to the generic compat_sys_ipc() syscall, which performs correct
zero and sign extension.
This was introduced with commit 56e41d3c5aa8 ("merge compat sys_ipc
instances").
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| f26946d7ecad0afdd85e6ae56663d0fe26676b34 |
|
16-Oct-2013 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: make psw32_user_bits a constant value again
Make psw32_user_bits a constant value again.
This is a leftover of the code which allowed to run the kernel either
in primary or home space which got removed with 9a905662 "s390/uaccess:
always run the kernel in home space".
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 2ec7f4aec4d459ef443151ecc875bfbb3a2788f8 |
|
07-Sep-2013 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat,uid16: use current_cred()
86a264ab "CRED: Wrap current->cred and a few other accessors" converted
all uses of current->cred into current_cred() but left s390 alone.
So let's convert s390 finally as well, only five years later.
This way we also get rid of a sparse warning which complains about a
possible invalid rcu dereference which however is a false positive.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| 56e41d3c5aa84d679eebdb3cb8a70b03c5fbd6c3 |
|
22-Jan-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
merge compat sys_ipc instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 19f4fc3aee180000fe45952691bbe69dde1d9e95 |
|
24-Feb-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
convert sendfile{,64} to COMPAT_SYSCALL_DEFINE
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| d7b5427cec79d993459c162db67eac9e22135e8b |
|
25-Dec-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
s390: switch to generic compat sched_rr_get_interval()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 07562be77d5b36aa961f722292a708bb663f8a73 |
|
25-Dec-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
s390: switch to generic compat rt_sigqueueinfo()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| bdcf03183cbf208923752bd26f6b9488c60ec1ca |
|
25-Dec-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
s390: switch to generic compat rt_sigpending()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 742602243177f3d1d87dede110d278a0f656cf4d |
|
25-Dec-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
s390: switch to generic compat rt_sigprocmask(2)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 65f22a906e154e8086ed561904d09c3586de85f4 |
|
06-Sep-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
s390: fold execve_tail() into start_thread(), convert to generic sys_execve()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 558a4479d9df64062520e529613885bfbac55472 |
|
11-Aug-2012 |
Eric W. Biederman <ebiederm@xmission.com> |
userns: Convert s390 getting uid and gid system calls to use kuid and kgid
Convert getresuid, getresgid, getuid, geteuid, getgid, getegid
Convert struct cred kuids and kgids into userspace uids and gids when
returning them.
These s390 system calls slipped through the cracks in my first
round of converstions :(
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
|
| e85871218513c54f7dfdb6009043cb638f2fecbe |
|
08-Aug-2012 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/compat: fix mmap compat system calls
The native 31 bit and the compat behaviour for the mmap system calls differ:
In native 31 bit mode the passed in address for the mmap system call will be
unmodified passed to sys_mmap_pgoff().
In compat mode however the passed in address will be modified with
compat_ptr() which masks out the most significant bit.
The result is that in native 31 bit mode each mmap request (with MAP_FIXED)
will fail where the most significat bit is set, while in compat mode it
may succeed.
This odd behaviour was introduced with d3815898 "[S390] mmap: add missing
compat_ptr conversion to both mmap compat syscalls".
To restore a consistent behaviour accross native and compat mode this
patch functionally reverts the above mentioned commit.
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| a53c8fab3f87c995c30ac226a03af95361243144 |
|
20-Jul-2012 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
s390/comments: unify copyright messages and remove file names
Remove the file name from the comment at top of many files. In most
cases the file name was wrong anyway, so it's rather pointless.
Also unify the IBM copyright statement. We did have a lot of sightly
different statements and wanted to change them one after another
whenever a file gets touched. However that never happened. Instead
people start to take the old/"wrong" statements to use as a template
for new files.
So unify all of them in one go.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| a7c1938e22c02b008655524c766d185ae99d9d53 |
|
09-Feb-2012 |
Eric W. Biederman <ebiederm@xmission.com> |
userns: Convert stat to return values mapped from kuids and kgids
- Store uids and gids with kuid_t and kgid_t in struct kstat
- Convert uid and gids to userspace usable values with
from_kuid and from_kgid
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
|
| ae2975bc3476243b45a1e2344236d7920c268f38 |
|
15-Nov-2011 |
Eric W. Biederman <ebiederm@xmission.com> |
userns: Convert group_info values from gid_t to kgid_t.
As a first step to converting struct cred to be all kuid_t and kgid_t
values convert the group values stored in group_info to always be
kgid_t values. Unless user namespaces are used this change should
have no effect.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
|
| 3a3954ceae756ed2a5d53b45c67db6dde3c0c126 |
|
27-Dec-2011 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] ipc: call generic sys_ipc demultiplexer
Call generic IPC demultiplexer instead of having a nearly identical
s390 variant. Also make sure that native and compat handling now have
the same behaviour.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 399c1d8dbfdcf46977fd2e2a833b02e18a284810 |
|
30-Oct-2011 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[S390] sparse: fix access past end of array warnings
Remove unnecessary code to avoid false positives from sparse, e.g.
arch/s390/kernel/compat_signal.c:221:61: warning: invalid access past the end of 'set32' (8 8)
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| b50511e41aa51a89b4176784a670582424bc7db6 |
|
30-Oct-2011 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[S390] cleanup psw related bits and pieces
Split out addressing mode bits from PSW_BASE_BITS, rename PSW_BASE_BITS
to PSW_MASK_BASE, get rid of psw_user32_bits, remove unused function
enabled_wait(), introduce PSW_MASK_USER, and drop PSW_MASK_MERGE macros.
Change psw_kernel_bits / psw_user_bits to contain only the bits that
are always set in the respective mode.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 451a3c24b0135bce54542009b5fde43846c7cf67 |
|
17-Nov-2010 |
Arnd Bergmann <arnd@arndb.de> |
BKL: remove extraneous #include <smp_lock.h>
The big kernel lock has been removed from all these files at some point,
leaving only the #include.
Remove this too as a cleanup.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| c7887325230aec47d47a32562a6e26014a0fafca |
|
11-Aug-2010 |
David Howells <dhowells@redhat.com> |
Mark arguments to certain syscalls as being const
Mark arguments to certain system calls as being const where they should be but
aren't. The list includes:
(*) The filename arguments of various stat syscalls, execve(), various utimes
syscalls and some mount syscalls.
(*) The filename arguments of some syscall helpers relating to the above.
(*) The buffer argument of various write syscalls.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 5a0e3ad6af8660be21ca98a971cd00f331318c05 |
|
24-Mar-2010 |
Tejun Heo <tj@kernel.org> |
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
|
| d381589834aa69f51f95b1e364fe79688692aab4 |
|
13-Jan-2010 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] mmap: add missing compat_ptr conversion to both mmap compat syscalls
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 399643f25eb93374e27e06ec85f0e8958298af2e |
|
03-Dec-2009 |
Boaz Harrosh <bharrosh@panasas.com> |
s390: remove un-used nfsd #includes
Some un-used includes removed.
This patch is in an effort to cleanup nfsd headers and move
private definitions to source directory.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
|
| f8b7256096a20436f6d0926747e3ac3d64c81d24 |
|
30-Nov-2009 |
Al Viro <viro@zeniv.linux.org.uk> |
Unify sys_mmap*
New helper - sys_mmap_pgoff(); switch syscalls to using it.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 570dcf2c15463842e384eb597a87c1e39bead99b |
|
30-Nov-2009 |
Al Viro <viro@zeniv.linux.org.uk> |
Kill ancient crap in s390 compat mmap
We've had TASK_SIZE set to 1<<31 for 31bit tasks since May 2004.
Before that old32_mmap() had to deal with do_mmap_pgoff() giving
it an address out of range. It had tried to do that by checking
return value and doing do_munmap() (at wrong address, BTW).
IOW, that code had been dead for 5.5 years (and bogus - for 8).
Kill.
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 2da3cf9755ea992a18650860fde74e3bfa8c8b65 |
|
07-Dec-2009 |
Boaz Harrosh <bharrosh@panasas.com> |
[S390] s390: remove unused nfsd #includes
Some unused includes removed.
This patch is in an effort to cleanup nfsd headers and move
private definitions to source directory.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 4ddf61ea99c1bbed4dcd889803c73213e1b3256b |
|
03-Apr-2009 |
Eric W. Biederman <ebiederm@xmission.com> |
sysctl: s390 Use the compat_sys_sysctl
Now that we have a generic 32bit compatibility implementation
there is no need for s390 to implement it's own.
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
|
| 2bcd57ab61e7cabed626226a3771617981c11ce1 |
|
24-Sep-2009 |
Alexey Dobriyan <adobriyan@gmail.com> |
headers: utsname.h redux
* remove asm/atomic.h inclusion from linux/utsname.h --
not needed after kref conversion
* remove linux/utsname.h inclusion from files which do not need it
NOTE: it looks like fs/binfmt_elf.c do not need utsname.h, however
due to some personality stuff it _is_ needed -- cowardly leave ELF-related
headers and files alone.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 2e50195f58ec045bc4601ec94478d957974f4aa4 |
|
22-Sep-2009 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Get rid of init_module/delete_module compat functions.
These functions aren't needed. Might be a leftover of the pre
cond_syscall time.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 3e86a8c617413e344143839c514e9b0c1713065c |
|
22-Sep-2009 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Convert sys_execve to function with parameters.
Use function parameters instead of accessing the pt_regs structure
to get the parameters.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 2d70ca23f86647e076e3a8b64b3a90e583b894d5 |
|
22-Sep-2009 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Convert sys_clone to function with parameters.
Use function parameters instead of accessing the pt_regs structure
to get the parameters.
Also merge the 31 and 64 bit versions since they are identical.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| bba7fc0a21d76ef951cdac6d11896dc6b5a9ffa7 |
|
18-Jun-2009 |
Oleg Nesterov <oleg@redhat.com> |
ptrace: remove PT_DTRACE from avr32, mn10300, parisc, s390, sh, xtensa
avr32, mn10300, parisc, s390, sh, xtensa:
They never set PT_DTRACE, but clear it after do_execve().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Chris Zankel <chris@zankel.net>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 0112fc2229847feb6c4eb011e6833d8f1742a375 |
|
08-Apr-2009 |
Oleg Drokin <green@linuxhacker.ru> |
Separate out common fstatat code into vfs_fstatat
This is a version incorporating Christoph's suggestion.
Separate out common *fstatat functionality into a single function
instead of duplicating it all over the code.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| b6dff3ec5e116e3af6f537d4caedcad6b9e5082a |
|
14-Nov-2008 |
David Howells <dhowells@redhat.com> |
CRED: Separate task security context from task_struct
Separate the task security context from task_struct. At this point, the
security data is temporarily embedded in the task_struct with two pointers
pointing to it.
Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in
entry.S via asm-offsets.
With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
|
| b418da16dd44810e5d5a22bba377cca80512a524 |
|
16-Oct-2008 |
Christoph Hellwig <hch@lst.de> |
compat: generic compat get/settimeofday
Nothing arch specific in get/settimeofday. The details of the timeval
conversion varied a little from arch to arch, but all with the same
results.
Also add an extern declaration for sys_tz to linux/time.h because externs
in .c files are fowned upon. I'll kill the externs in various other files
in a sparate patch.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net> [ sparc bits ]
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| f7a5000f7a8924e9c5fad1801616601d6dc65a17 |
|
16-Oct-2008 |
Christoph Hellwig <hch@lst.de> |
compat: move cp_compat_stat to common code
struct stat / compat_stat is the same on all architectures, so
cp_compat_stat should be, too.
Turns out it is, except that various architectures have slightly and some
high2lowuid/high2lowgid or the direct assignment instead of the
SET_UID/SET_GID that expands to the correct one anyway.
This patch replaces the arch-specific cp_compat_stat implementations with
a common one based on the x86-64 one.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net> [ sparc bits ]
Acked-by: Kyle McMartin <kyle@mcmartin.ca> [ parisc bits ]
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| d86730bb9597b02bff59a3a5a01c0094d71a265f |
|
10-Oct-2008 |
Christoph Hellwig <hch@lst.de> |
[S390] s390: use sys_pause for 31bit pause entry point
sys32_pause is a useless copy of the generic sys_pause.
(and it's certainly not there for old sparc32 binaries..)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 950e4da32426859ee4b37b2c95026d4f1efa5d05 |
|
26-Feb-2008 |
Matthew Wilcox <matthew@wil.cx> |
arch: Remove unnecessary inclusions of asm/semaphore.h
None of these files use any of the functionality promised by
asm/semaphore.h. It's possible that they rely on it dragging in some
unrelated header file, but I can't build all these files, so we'll have
fix any build failures as they come up.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
|
| cba4fbbff2e9722e93b28e18fa7714b9013cbdda |
|
17-Oct-2007 |
Adrian Bunk <bunk@kernel.org> |
remove include/asm-*/ipc.h
All asm/ipc.h files do only #include <asm-generic/ipc.h>.
This patch therefore removes all include/asm-*/ipc.h files and moves the
contents of include/asm-generic/ipc.h to include/linux/ipc.h.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 03ff9a235a0602724fc54916469b6e0939c62c9b |
|
27-Apr-2007 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[S390] System call cleanup.
Remove system call glue for sys_clone, sys_fork, sys_vfork, sys_execve,
sys_sigreturn, sys_rt_sigreturn and sys_sigaltstack. Call do_execve from
kernel_execve directly, move pt_regs to the right place and branch to
sysc_return to start the user space program. This removes the last
in-kernel system call.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
|
| d4d23add3abcd18d8021b99f230df608ccb2f007 |
|
10-Feb-2007 |
Kyle McMartin <kyle@parisc-linux.org> |
[PATCH] Common compat_sys_sysinfo
I noticed that almost all architectures implemented exactly the same
sys32_sysinfo... except parisc, where a bug was to be found in handling of
the uptime. So let's remove a whole whack of code for fun and profit.
Cribbed compat_sys_sysinfo from x86_64's implementation, since I figured it
would be the best tested.
This patch incorporates Arnd's suggestion of not using set_fs/get_fs, but
instead extracting out the common code from sys_sysinfo.
Cc: Christoph Hellwig <hch@infradead.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| c1821c2e9711adc3cd298a16b7237c92a2cee78d |
|
05-Feb-2007 |
Gerald Schaefer <geraldsc@de.ibm.com> |
[S390] noexec protection
This provides a noexec protection on s390 hardware. Our hardware does
not have any bits left in the pte for a hw noexec bit, so this is a
different approach using shadow page tables and a special addressing
mode that allows separate address spaces for code and data.
As a special feature of our "secondary-space" addressing mode, separate
page tables can be specified for the translation of data addresses
(storage operands) and instruction addresses. The shadow page table is
used for the instruction addresses and the standard page table for the
data addresses.
The shadow page table is linked to the standard page table by a pointer
in page->lru.next of the struct page corresponding to the page that
contains the standard page table (since page->private is not really
private with the pte_lock and the page table pages are not in the LRU
list).
Depending on the software bits of a pte, it is either inserted into
both page tables or just into the standard (data) page table. Pages of
a vma that does not have the VM_EXEC bit set get mapped only in the
data address space. Any try to execute code on such a page will cause a
page translation exception. The standard reaction to this is a SIGSEGV
with two exceptions: the two system call opcodes 0x0a77 (sys_sigreturn)
and 0x0aad (sys_rt_sigreturn) are allowed. They are stored by the
kernel to the signal stack frame. Unfortunately, the signal return
mechanism cannot be modified to use an SA_RESTORER because the
exception unwinding code depends on the system call opcode stored
behind the signal stack frame.
This feature requires that user space is executed in secondary-space
mode and the kernel in home-space mode, which means that the addressing
modes need to be switched and that the noexec protection only works
for user space.
After switching the addressing modes, we cannot use the mvcp/mvcs
instructions anymore to copy between kernel and user space. A new
mvcos instruction has been added to the z9 EC/BC hardware which allows
to copy between arbitrary address spaces, but on older hardware the
page tables need to be walked manually.
Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 2b67fc46061b2171fb8fbb55d1ac717abd533569 |
|
05-Feb-2007 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Get rid of a lot of sparse warnings.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 12bae23507129a7337378e6433bff6f8696bdb45 |
|
27-Oct-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] uaccess error handling.
Consider return values for all user space access function and
return -EFAULT on error.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 1df23957ba2da6eb8c7a5c2ad7bb1d4732132873 |
|
18-Oct-2006 |
Cedric Le Goater <clg@fr.ibm.com> |
[S390] fix vmlinux link when CONFIG_SYSIPC=n
Fix the following compile error:
CC init/version.o
LD init/built-in.o
LD .tmp_vmlinux1
arch/s390/kernel/built-in.o(.text+0xdba4): In function `sys32_ipc':
: undefined reference to `compat_sys_semtimedop'
arch/s390/kernel/built-in.o(.text+0xdbee): In function `sys32_ipc':
: undefined reference to `compat_sys_semctl'
arch/s390/kernel/built-in.o(.text+0xdc08): In function `sys32_ipc':
: undefined reference to `compat_sys_msgsnd'
arch/s390/kernel/built-in.o(.text+0xdc30): In function `sys32_ipc':
: undefined reference to `compat_sys_msgrcv'
arch/s390/kernel/built-in.o(.text+0xdc58): In function `sys32_ipc':
: undefined reference to `compat_sys_msgctl'
arch/s390/kernel/built-in.o(.text+0xdc76): In function `sys32_ipc':
: undefined reference to `compat_sys_shmat'
arch/s390/kernel/built-in.o(.text+0xdcb0): In function `sys32_ipc':
: undefined reference to `compat_sys_shmctl'
make: *** [.tmp_vmlinux1] Error 1
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| afefdbb28a0a2af689926c30b94a14aea6036719 |
|
03-Oct-2006 |
David Howells <dhowells@redhat.com> |
[PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers
These patches make the kernel pass 64-bit inode numbers internally when
communicating to userspace, even on a 32-bit system. They are required
because some filesystems have intrinsic 64-bit inode numbers: NFS3+ and XFS
for example. The 64-bit inode numbers are then propagated to userspace
automatically where the arch supports it.
Problems have been seen with userspace (eg: ld.so) using the 64-bit inode
number returned by stat64() or getdents64() to differentiate files, and
failing because the 64-bit inode number space was compressed to 32-bits, and
so overlaps occur.
This patch:
Make filldir_t take a 64-bit inode number and struct kstat carry a 64-bit
inode number so that 64-bit inode numbers can be passed back to userspace.
The stat functions then returns the full 64-bit inode number where
available and where possible. If it is not possible to represent the inode
number supplied by the filesystem in the field provided by userspace, then
error EOVERFLOW will be issued.
Similarly, the getdents/readdir functions now pass the full 64-bit inode
number to userspace where possible, returning EOVERFLOW instead when a
directory entry is encountered that can't be properly represented.
Note that this means that some inodes will not be stat'able on a 32-bit
system with old libraries where they were before - but it does mean that
there will be no ambiguity over what a 32-bit inode number refers to.
Note similarly that directory scans may be cut short with an error on a
32-bit system with old libraries where the scan would work before for the
same reasons.
It is judged unlikely that this situation will occur because modern glibc
uses 64-bit capable versions of stat and getdents class functions
exclusively, and that older systems are unlikely to encounter
unrepresentable inode numbers anyway.
[akpm: alpha build fix]
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 94c12cc7d196bab34aaa98d38521549fa1e5ef76 |
|
28-Sep-2006 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[S390] Inline assembly cleanup.
Major cleanup of all s390 inline assemblies. They now have a common
coding style. Quite a few have been shortened, mainly by using register
asm variables. Use of the EX_TABLE macro helps as well. The atomic ops,
bit ops and locking inlines new use the Q-constraint if a newer gcc
is used. That results in slightly better code.
Thanks to Christian Borntraeger for proof reading the changes.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| b89a81712f486e4f7a606987413e387605fdeaf4 |
|
27-Sep-2006 |
Eric W. Biederman <ebiederm@xmission.com> |
[PATCH] sysctl: Allow /proc/sys without sys_sysctl
Since sys_sysctl is deprecated start allow it to be compiled out. This
should catch any remaining user space code that cares, and paves the way
for further sysctl cleanups.
[akpm@osdl.org: If sys_sysctl() is not compiled-in, emit a warning]
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| d2c993d845781d160a7ef759a3e65c6892c4a270 |
|
12-Jul-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Fix sparse warnings.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
| 6ab3d5624e172c553004ecc862bfeac16d9d68b7 |
|
30-Jun-2006 |
Jörn Engel <joern@wohnheim.fh-wedel.de> |
Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
|
| 3158e9411a66fb98d495ac441c242264f31aaf3e |
|
26-Mar-2006 |
Stephen Rothwell <sfr@canb.auug.org.au> |
[PATCH] consolidate sys32/compat_adjtimex
Create compat_sys_adjtimex and use it an all appropriate places.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 88959ea968709c35e8b979ac9f5a398fa748091a |
|
26-Mar-2006 |
Stephen Rothwell <sfr@canb.auug.org.au> |
[PATCH] create struct compat_timex and use it everywhere
We had a copy of the compatibility version of struct timex in each 64 bit
architecture. This patch just creates a global one and replaces all the
usages of the old ones.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Acked-by: Tony Luck <tony.luck@intel.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| ed3d021b823336a2e0c5090a91d083243f756e6c |
|
17-Feb-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[PATCH] s390: sys32_fstatat -> sys32_fstatat64
Just rename the compat system call to keep the name consistent with all the
other *64 compat system calls.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 19bf9cbf6b313ae79a0c7278ccaa9c72c86931bd |
|
12-Feb-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[PATCH] s390: fstatat64 support
Add fstatat64 support to s390 in order to follow changes with
commit cff2b760096d1e6feaa31948e7af4abbefe47822 .
Also fixes compilation for 31 bit.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 24954a1418298058399581d6fcc4d46e928e1bf5 |
|
01-Feb-2006 |
Al Viro <viro@zeniv.linux.org.uk> |
[PATCH] s390x compat __user annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| a9415644583ef344e02f84faf5fe24bfadb2af8e |
|
11-Jan-2006 |
Randy Dunlap <rdunlap@xenotime.net> |
[PATCH] capable/capability.h (arch/)
arch: Use <linux/capability.h> where capable() is used.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 3a0f69d59ba41fbcad6a17b6e8aab02bf45e20ce |
|
10-Jan-2006 |
Christoph Hellwig <hch@lst.de> |
[PATCH] common compat_sys_timer_create
The comment in compat.c is wrong, every architecture provides a
get_compat_sigevent() for the IPC compat code already.
This basically moves the x86_64 version to common code and removes all the
others.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Mackerras <paulus@samba.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| a63a4931c301a14ca79c41fec0b99d898dbba1fb |
|
06-Jan-2006 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[PATCH] s390: uaccess warnings
Convert __access_ok to an inline C function and change __get_user primitive to
avoid uaccess compiler warnings.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 83b942bd3437d84d6ddf582477120b6b86369052 |
|
12-Sep-2005 |
Tsuneo.Yoshioka@f-secure.com <Tsuneo.Yoshioka@f-secure.com> |
[PATCH] x86-64: Fix 32bit sendfile
If we use 64bit kernel on ia64/x86_64/s390 architecture, and we run
32bit binary on 32bit compatibility mode, sendfile system call seems be
not set offset argument.
This is because sendfile's return value is not zero but the code regards
the result by return value is zero or not.
This problem will be affect to ia64/x86_64/s390 and not affect to other
architecture does not affect other architecture (mips/parisc/ppc64/sparc64).
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 068e1b94bbd268f375349f68531829c8b7c210bc |
|
13-Jul-2005 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[PATCH] s390: fadvise hint values.
Add special case for the POSIX_FADV_DONTNEED and POSIX_FADV_NOREUSE hint
values for s390-64. The user space values in the s390-64 glibc headers for
these two defines have always been 6 and 7 instead of 4 and 5. All 64 bit
applications therefore use the "wrong" values. To get these applications
working without recompiling the kernel needs to accept the "wrong" values.
Since the values for s390-31 are 4 and 5 the compat wrapper for fadvise64
and fadvise64_64 need to rewrite the values for 31 bit system calls.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
|
17-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
|