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2006-04-29Remove unneeded _syscallX macros from user view in asm-*/unistd.hDavid Woodhouse21-86/+76
These aren't needed by glibc or klibc, and they're broken in some cases anyway. The uClibc folks are apparently switching over to stop using them too (now that we agreed that they should be dropped, at least). Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-29Remove 'extern int errno;' from public view in linux/unistd.hDavid Woodhouse1-0/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-29Remove struct input_device_id from public view in linux/input.hDavid Woodhouse1-0/+4
It uses kernel_ulong_t but can't be wrapped in __KERNEL__ because it's used from scripts/mod/file2alias.c -- but we _can_ hide it inside header manually too (and it doesn't generally exist for userspace). Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-29Don't include <linux/mod_devicetable.h> in public part of linux/pci.hDavid Woodhouse1-2/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6David Woodhouse26-67/+251
2006-04-28[PATCH] s390: add read_mostly optimizationChristian Borntraeger1-0/+2
Add a read_mostly section and define __read_mostly to prevent cache line pollution due to writes for mostly read variables. In addition fix the incorrect alignment of the cache_line_aligned data section. s390 has a cacheline size of 256 bytes. Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com> 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>
2006-04-28[PATCH] s390: futex atomic operationsMartin Schwidefsky1-4/+119
Add support for atomic futex operations. 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>
2006-04-28[PATCH] request_irq(): remove warnings from irq probingAndrew Morton2-2/+4
- Add new SA_PROBEIRQ which suppresses the new sharing-mismatch warning. Some drivers like to use request_irq() to find an unused interrupt slot. - Use it in i82365.c - Kill unused SA_PROBE. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28Merge branch 'release' of ↵Linus Torvalds6-8/+29
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] update sn2 defconfig [IA64] Add mca recovery failure messages [IA64-SGI] fix SGI Altix tioce_reserve_m32() bug [IA64] enable dumps to capture second page of kernel stack [IA64-SGI] - Reduce overhead of reading sn_topology [IA64-SGI] - Fix discover of nearest cpu node to IO node [IA64] IOC4 config option ordering [IA64] Setup an IA64 specific reclaim distance [IA64] eliminate compile time warnings [IA64] eliminate compile time warnings [IA64-SGI] SN SAL call to inject memory errors [IA64] - Fix MAX_PXM_DOMAINS for systems with > 256 nodes [IA64] Remove unused variable in sn_sal.h [IA64] Remove redundant NULL checks before kfree [IA64] wire up compat_sys_adjtimex()
2006-04-28[IA64] enable dumps to capture second page of kernel stackCliff Wickman1-1/+1
In SLES10 (2.6.16) crash dumping (in my experience, LKCD) is unable to capture the second page of the 2-page task/stack allocation. This is particularly troublesome for dump analysis, as the stack traceback cannot be done. (A similar convention is probably needed throughout the kernel to make kernel multi-page allocations detectable for dumping) Multi-page kernel allocations are represented by the single page structure associated with the first page of the allocation. The page structures associated with the other pages are unintialized. If the dumper is selecting only kernel pages it has no way to identify any but the first page of the allocation. The fix is to make the task/stack allocation a compound page. Signed-off-by: Cliff Wickman <cpw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-28[IA64-SGI] - Fix discover of nearest cpu node to IO nodeJack Steiner1-1/+5
Fix a bug that causes discovery of the nearest node/cpu to a TIO (IO node) to fail. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-28Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2-5/+3
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: [PATCH] Added URI of "linux kernel development process" [PATCH] Kobject: possible cleanups [PATCH] Fix OCFS2 warning when DEBUG_FS is not enabled [PATCH] Kobject: fix build error [PATCH] Frame buffer: remove cmap sysfs interface
2006-04-28Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2-32/+25
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Fix branch emulation for floating-point exceptions. [MIPS] Cleanup inode->r_dev usage. [MIPS] Update MIPS defconfigs. [MIPS] Get rid of CONFIG_ADVANCED. [MIPS] Kconfig: Clarify description of CROSSCOMPILE. [MIPS] 24K LV: Add core card id. [MIPS] Sparse: fix sparse for 64-bit kernels. [MIPS] Use __ffs() instead of ffs() in ip32_irq0(). [MIPS] Fix bitops for MIPS32/MIPS64 CPUs. [MIPS] Fix ip27 build. [MIPS] Oprofile: fix sparse warning. [MIPS] Fix oprofile module unloading
2006-04-28Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds1-0/+2
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: make the read-side do batched page lookups [PATCH] Add find_get_pages_contig(): contiguous variant of find_get_pages() [PATCH] splice: switch to using page_cache_readahead()
2006-04-28[PATCH] Kobject: possible cleanupsAdrian Bunk1-1/+0
This patch contains the following possible cleanups: - #if 0 the following unused global function: - subsys_remove_file() - remove the following unused EXPORT_SYMBOL's: - kset_find_obj - subsystem_init - remove the following unused EXPORT_SYMBOL_GPL: - kobject_add_dir Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-28[PATCH] Fix OCFS2 warning when DEBUG_FS is not enabledJean Delvare1-3/+2
Fix the following warning which happens when OCFS2_FS is enabled but DEBUG_FS isn't: fs/ocfs2/dlmglue.c: In function `ocfs2_dlm_init_debug': fs/ocfs2/dlmglue.c:2036: warning: passing arg 5 of `debugfs_create_file' discards qualifiers from pointer target type Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Joel Becker <Joel.Becker@oracle.com> Acked-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-28[PATCH] Kobject: fix build errorKay Sievers1-1/+1
This fixes a build error for various odd combinations of CONFIG_HOTPLUG and CONFIG_NET. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Nigel Cunningham <ncunningham@cyclades.com> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] x86/PAE: Fix pte_clear for the >4GB RAM caseZachary Amsden3-3/+24
Proposed fix for ptep_get_and_clear_full PAE bug. Pte_clear had the same bug, so use the same fix for both. Turns out pmd_clear had it as well, but pgds are not affected. The problem is rather intricate. Page table entries in PAE mode are 64-bits wide, but the only atomic 8-byte write operation available in 32-bit mode is cmpxchg8b, which is expensive (at least on P4), and thus avoided. But it can happen that the processor may prefetch entries into the TLB in the middle of an operation which clears a page table entry. So one must always clear the P-bit in the low word of the page table entry first when clearing it. Since the sequence *ptep = __pte(0) leaves the order of the write dependent on the compiler, it must be coded explicitly as a clear of the low word followed by a clear of the high word. Further, there must be a write memory barrier here to enforce proper ordering by the compiler (and, in the future, by the processor as well). On > 4GB memory machines, the implementation of pte_clear for PAE was clearly deficient, as it could leave virtual mappings of physical memory above 4GB aliased to memory below 4GB in the TLB. The implementation of ptep_get_and_clear_full has a similar bug, although not nearly as likely to occur, since the mappings being cleared are in the process of being destroyed, and should never be dereferenced again. But, as luck would have it, it is possible to trigger bugs even without ever dereferencing these bogus TLB mappings, even if the clear is followed fairly soon after with a TLB flush or invalidation. The problem is that memory above 4GB may now be aliased into the first 4GB of memory, and in fact, may hit a region of memory with non-memory semantics. These regions include AGP and PCI space. As such, these memory regions are not cached by the processor. This introduces the bug. The processor can speculate memory operations, including memory writes, as long as they are committed with the proper ordering. Speculating a memory write to a linear address that has a bogus TLB mapping is possible. Normally, the speculation is harmless. But for cached memory, it does leave the falsely speculated cacheline unmodified, but in a dirty state. This cache line will be eventually written back. If this cacheline happens to intersect a region of memory that is not protected by the cache coherency protocol, it can corrupt data in I/O memory, which is generally a very bad thing to do, and can cause total system failure or just plain undefined behavior. These bugs are extremely unlikely, but the severity is of such magnitude, and the fix so simple that I think fixing them immediately is justified. Also, they are nearly impossible to debug. Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-27linux/blkpg.h needs <linux/compiler.h> for __userDavid Woodhouse1-0/+1
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-27Exclude asm-generic/{page,memory_model}.h from user bits of i386/x86_64 page.hDavid Woodhouse2-4/+4
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-27[MIPS] 24K LV: Add core card id.Chris Dearman1-0/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-27[MIPS] Fix bitops for MIPS32/MIPS64 CPUs.Atsushi Nemoto1-32/+24
With recent rewrite for generic bitops, fls() for 32bit kernel with MIPS64_CPU is broken. Also, ffs(), fls() should be defined the same way as the libc and compiler built-in routines (returns int instead of unsigned long). Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-27[PATCH] Add find_get_pages_contig(): contiguous variant of find_get_pages()Jens Axboe1-0/+2
find_get_pages_contig() will break out if we hit a hole in the page cache. From Andrew Morton, small modifications and documentation by me. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-27Add standard include guard to asm-generic/signal and use compiler.hDavid Woodhouse1-0/+7
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-27Don't include implementation details from asm-s390/ptrace.h and page.hDavid Woodhouse2-5/+6
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-27Sanitise linux/sched.h for userspace consumptionDavid Woodhouse1-39/+37
There was a whole load of crap exposed which should have been inside the existing #ifdef __KERNEL__ part. Also hide struct sched_param for now, since glibc has its own and doesn't like being given ours (yet). Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-27Sanitise linux/audit.h for userspace consumption, split elf-em.h from elf.hDavid Woodhouse3-60/+47
Don't include <linux/sched.h> outside __KERNEL__, and split the EM_xxx definitions out of elf.h into elf-em.h so that audit.h can include just that and not pollute the namespace any further than it needs to. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-26Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds6-4/+29
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: add ->splice_write support for /dev/null [PATCH] splice: rearrange moving to/from pipe helpers [PATCH] Add support for the sys_vmsplice syscall [PATCH] splice: fix offset problems [PATCH] splice: fix min() warning
2006-04-26[PATCH] splice: rearrange moving to/from pipe helpersJens Axboe1-0/+17
We need these for people writing their own ->splice_read/write hooks. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-26Don't include linux/config.h from anywhere else in include/David Woodhouse836-839/+0
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-26[PATCH] sky2: reschedule if irq still pendingStephen Hemminger1-8/+10
This is a workaround for the case edge-triggered irq's. Several users seem to have broken configurations sharing edge-triggered irq's. To avoid losing IRQ's, reshedule if more work arrives. The changes to netdevice.h are to extract the part that puts device back in list into separate inline. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-26Merge branch 'upstream-fixes' of ↵Jeff Garzik1-1/+4
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes
2006-04-26[PATCH] Add support for the sys_vmsplice syscallJens Axboe5-4/+12
sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice() moves data to a pipe, with the input being a user address range instead. This uses an approach suggested by Linus, where we can hold partial ranges inside the pages[] map. Hopefully this will be useful for network receive support as well. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-25Don't include <linux/config.h> and <linux/linkage.h> from linux/socket.hDavid Woodhouse1-2/+0
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include private headers from user-visible part of linux/ext3_fs.hDavid Woodhouse1-5/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include private headers from user-visible part of linux/ext2_fs.hDavid Woodhouse1-1/+1
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include private headers from user-visible part of linux/smb_fs.hDavid Woodhouse1-2/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Sanitise linux/sunrpc/debug.h for userspace consumptionDavid Woodhouse1-13/+12
Move some inclusion of private header files and the definition of RPC_DEBUG inside the existing #ifdef __KERNEL__ Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't export CONFIG_COMPAT stuff in linux/usbdevice_fs.h to userspaceDavid Woodhouse1-0/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include <linux/spinlock.h> from user-visible part of linux/wanrouter.hDavid Woodhouse1-2/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Move comment in mtd-abi.h to stop confusing unifdefDavid Woodhouse1-2/+3
Currently, unifdef removes the comment which starts on the same line as the #ifdef __KERNEL__, but leaves the second line of the comment in place. Move the comment onto a separate line. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include private headers from user-visible part of linux/signal.hDavid Woodhouse1-2/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include <asm/atomic.h> from user-visible part of linux/sem.hDavid Woodhouse1-1/+1
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Partially sanitise linux/sched.h for userspace consumptionDavid Woodhouse1-8/+10
For now, just make sure all inclusion of private header files is done within #ifdef __KERNEL__. There'll be more to clean up later. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include <linux/list.h> from user-visible part of reiserfs_xattr.hDavid Woodhouse1-1/+1
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include private headers from user-visible parts of linux/quota.hDavid Woodhouse1-2/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include private headers from user-visible parts of include/linux/nfs*.hDavid Woodhouse3-27/+26
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include <linux/stringify> from user-visible part of linux/net.hDavid Woodhouse1-1/+1
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include <linux/list.h> from user-visible part of linux/msg.hDavid Woodhouse1-1/+1
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Don't include private files from user-visible part of linux/ncp_fs.hDavid Woodhouse1-3/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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