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* agp/intel: Add support for new intel chipset.Shaohua Li2009-03-275-22/+128
| | | | | | | This is a G33-like desktop and mobile chipset. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
* i915/drm: Remove two redundant agp_chipset_flushesOwain G. Ainsworth2009-03-271-4/+0
| | | | | | | | | | | | | agp_chipset_flush() is for flushing the intel GMCH write cache via the IFP, these two uses are for when we're getting the object into the cpu READ domain, and thus should not be needed. This confused me when I was getting my head around the code. With thanks to airlied for helping me check my mental picture of how the flushes and clflushes are supposed to be used. Signed-off-by: Owain G. Ainsworth <oga@openbsd.org> Signed-off-by: Eric Anholt <eric@anholt.net>
* drm/i915: Display fence register state in debugfs i915_gem_fence_regs node.Chris Wilson2009-03-271-9/+57
| | | | | Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
* drm/i915: Add information on pinning and fencing to the i915 list debug.Eric Anholt2009-03-271-11/+20
| | | | | | | | This was inspired by a patch by Chris Wilson, though none of it applied in any way due to the debugfs work and I decided to change the formatting of the new information anyway. Signed-off-by: Eric Anholt <eric@anholt.net>
* drm/i915: Consolidate gem object list dumpingBen Gamari2009-03-271-58/+28
| | | | | | | | Here we eliminate a few functions in favor of using a single function to dump from all of the object lists. Signed-Off-By: Ben Gamari <bgamari@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net>
* drm/i915: Convert i915 proc files to seq_file and move to debugfs.Ben Gamari2009-03-275-339/+239
| | | | | Signed-off-by: Ben Gamari <bgamari@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net>
* drm: Convert proc files to seq_file and introduce debugfsBen Gamari2009-03-277-615/+776
| | | | | | | | | | | | | The old mechanism to formatting proc files is extremely ugly. The seq_file API was designed specifically for cases like this and greatly simplifies the process. Also, most of the files in /proc really don't belong there. This patch introduces the infrastructure for putting these into debugfs and exposes all of the proc files in debugfs as well. Signed-off-by: Ben Gamari <bgamari@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net>
* drm/i915: Fix lock order reversal in GEM relocation entry copying.Eric Anholt2009-03-271-54/+133
| | | | | Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Keith Packard <keithp@keithp.com>
* drm/i915: Fix lock order reversal with cliprects and cmdbuf in non-DRI2 paths.Eric Anholt2009-03-273-39/+97
| | | | | | | | | | | | This introduces allocation in the batch submission path that wasn't there previously, but these are compatibility paths so we care about simplicity more than performance. kernel.org bug #12419. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Keith Packard <keithp@keithp.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* drm/i915: Fix lock order reversal in shmem pread path.Eric Anholt2009-03-271-26/+195
| | | | | Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* drm/i915: Fix lock order reversal in shmem pwrite path.Eric Anholt2009-03-271-20/+205
| | | | | | | | | Like the GTT pwrite path fix, this uses an optimistic path and a fallback to get_user_pages. Note that this means we have to stop using vfs_write and roll it ourselves. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* drm/i915: Make GEM object's page lists refcounted instead of get/free.Eric Anholt2009-03-272-35/+38
| | | | | | | | | We've wanted this for a few consumers that touch the pages directly (such as the following commit), which have been doing the refcounting outside of get/put pages. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* drm/i915: Fix lock order reversal in GTT pwrite path.Eric Anholt2009-03-271-27/+139
| | | | | | | | | | | | Since the pagefault path determines that the lock order we use has to be mmap_sem -> struct_mutex, we can't allow page faults to occur while the struct_mutex is held. To fix this in pwrite, we first try optimistically to see if we can copy from user without faulting. If it fails, fall back to using get_user_pages to pin the user's memory, and map those pages atomically when copying it to the GPU. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* drm/i915: Read the right SDVO register when detecting SVDO/HDMI.Kristian Høgsberg2009-03-271-1/+9
| | | | | | | | This fixes incorrect detection of the second SDVO/HDMI output on G4X, and extra boot time on pre-G4X. Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net>
* drm/i915: Use a different PLL timing search function on G4X.Ma Ling2009-03-271-12/+88
| | | | | | | | | | | | This improves the PLL timings according to the suggestion of the hardware engineers. This results in some outputs being able to sync that weren't able to before. This is part of fixing fd.o bug #17508. Signed-off-by: Ma Ling <ling.ma@intel.com> [anholt: cleaned up a couple of redundant comments] Signed-off-by: Eric Anholt <eric@anholt.net>
* drm/i915: Use documented PLL timing limits for G4X platformMa Ling2009-03-271-1/+186
| | | | | | | | | | | The values come from the internal reference spreadsheet on PLL timing limits for the G4X chipsets. Part of fixing fd.o bug #17508 Signed-off-by: Ma Ling <ling.ma@intel.com> [anholt: Cleaned up some whitespace] Signed-off-by: Eric Anholt <eric@anholt.net>
* drm/i915: Change DCC tiling detection case to cover only mobile parts.Eric Anholt2009-03-271-16/+15
| | | | | | | | | Later spec investigation has revealed that every 9xx mobile part has had this register in this format. Also, no non-mobile parts have been shown to have this register. So make all mobile use the same code, and all non-mobile use the hack 965 detection. Signed-off-by: Eric Anholt <eric@anholt.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-03-263-50/+96
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slob: fix lockup in slob_free() slub: use get_track() slub: rename calculate_min_partial() to set_min_partial() slub: add min_partial sysfs tunable slub: move min_partial to struct kmem_cache SLUB: Fix default slab order for big object sizes SLUB: Do not pass 8k objects through to the page allocator SLUB: Introduce and use SLUB_MAX_SIZE and SLUB_PAGE_SHIFT constants slob: clean up the code SLUB: Use ->objsize from struct kmem_cache_cpu in slab_free()
| *-------. Merge branches 'topic/slob/cleanups', 'topic/slob/fixes', 'topic/slub/core', ↵Pekka Enberg2009-03-243-50/+96
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | 'topic/slub/cleanups' and 'topic/slub/perf' into for-linus
| | | | | | * SLUB: Fix default slab order for big object sizesZhang Yanmin2009-02-201-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The default order of kmalloc-8192 on 2*4 stoakley is an issue of calculate_order. slab_size order name ------------------------------------------------- 4096 3 sgpool-128 8192 2 kmalloc-8192 16384 3 kmalloc-16384 kmalloc-8192's default order is smaller than sgpool-128's. On 4*4 tigerton machine, a similiar issue appears on another kmem_cache. Function calculate_order uses 'min_objects /= 2;' to shrink. Plus size calculation/checking in slab_order, sometimes above issue appear. Below patch against 2.6.29-rc2 fixes it. I checked the default orders of all kmem_cache and they don't become smaller than before. So the patch wouldn't hurt performance. Signed-off-by Zhang Yanmin <yanmin.zhang@linux.intel.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | | | | * SLUB: Do not pass 8k objects through to the page allocatorPekka Enberg2009-02-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Increase the maximum object size in SLUB so that 8k objects are not passed through to the page allocator anymore. The network stack uses 8k objects for performance critical operations. The patch is motivated by a SLAB vs. SLUB regression in the netperf benchmark. The problem is that the kfree(skb->head) call in skb_release_data() that is subject to page allocator pass-through as the size passed to __alloc_skb() is larger than 4 KB in this test. As explained by Yanmin Zhang: I use 2.6.29-rc2 kernel to run netperf UDP-U-4k CPU_NUM client/server pair loopback testing on x86-64 machines. Comparing with SLUB, SLAB's result is about 2.3 times of SLUB's. After applying the reverting patch, the result difference between SLUB and SLAB becomes 1% which we might consider as fluctuation. [ penberg@cs.helsinki.fi: fix oops in kmalloc() ] Reported-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> Tested-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | | | | * SLUB: Introduce and use SLUB_MAX_SIZE and SLUB_PAGE_SHIFT constantsChristoph Lameter2009-02-202-11/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As a preparational patch to bump up page allocator pass-through threshold, introduce two new constants SLUB_MAX_SIZE and SLUB_PAGE_SHIFT and convert mm/slub.c to use them. Reported-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> Tested-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | | | * | slub: use get_track()Akinobu Mita2009-03-231-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use get_track() in set_track() Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | | | * | SLUB: Use ->objsize from struct kmem_cache_cpu in slab_free()Pekka Enberg2009-01-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no reason to use ->objsize from struct kmem_cache in slab_free() for the SLAB_DEBUG_OBJECTS case. All it does is generate extra cache pressure as we try very hard not to touch struct kmem_cache in the fast-path. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | | * | | slub: rename calculate_min_partial() to set_min_partial()David Rientjes2009-02-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As suggested by Christoph Lameter, rename calculate_min_partial() to set_min_partial() as the function doesn't really do any calculations. Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | | * | | slub: add min_partial sysfs tunableDavid Rientjes2009-02-231-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that a cache's min_partial has been moved to struct kmem_cache, it's possible to easily tune it from userspace by adding a sysfs attribute. It may not be desirable to keep a large number of partial slabs around if a cache is used infrequently and memory, especially when constrained by a cgroup, is scarce. It's better to allow userspace to set the minimum policy per cache instead of relying explicitly on kmem_cache_shrink(). The memory savings from simply moving min_partial from struct kmem_cache_node to struct kmem_cache is obviously not significant (unless maybe you're from SGI or something), at the largest it's # allocated caches * (MAX_NUMNODES - 1) * sizeof(unsigned long) The true savings occurs when userspace reduces the number of partial slabs that would otherwise be wasted, especially on machines with a large number of nodes (ia64 with CONFIG_NODES_SHIFT at 10 for default?). As well as the kernel estimates ideal values for n->min_partial and ensures it's within a sane range, userspace has no other input other than writing to /sys/kernel/slab/cache/shrink. There simply isn't any better heuristic to add when calculating the partial values for a better estimate that works for all possible caches. And since it's currently a static value, the user really has no way of reclaiming that wasted space, which can be significant when constrained by a cgroup (either cpusets or, later, memory controller slab limits) without shrinking it entirely. This also allows the user to specify that increased fragmentation and more partial slabs are actually desired to avoid the cost of allocating new slabs at runtime for specific caches. There's also no reason why this should be a per-struct kmem_cache_node value in the first place. You could argue that a machine would have such node size asymmetries that it should be specified on a per-node basis, but we know nobody is doing that right now since it's a purely static value at the moment and there's no convenient way to tune that via slub's sysfs interface. Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | | * | | slub: move min_partial to struct kmem_cacheDavid Rientjes2009-02-232-14/+17
| | | | | |/ | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although it allows for better cacheline use, it is unnecessary to save a copy of the cache's min_partial value in each kmem_cache_node. Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | * | | slob: fix lockup in slob_free()Nick Piggin2009-03-231-1/+2
| | | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't hold SLOB lock when freeing the page. Reduces lock hold width. See the following thread for discussion of the bug: http://marc.info/?l=linux-kernel&m=123709983214143&w=2 Reported-by: Ingo Molnar <mingo@elte.hu> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | * | | slob: clean up the codeAmérico Wang2009-01-191-15/+25
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Use NULL instead of plain 0; - Rename slob_page() to is_slob_page(); - Define slob_page() to convert void* to struct slob_page*; - Rename slob_new_page() to slob_new_pages(); - Define slob_free_pages() accordingly. Compile tests only. Signed-off-by: WANG Cong <wangcong@zeuux.org> Signed-off-by: Matt Mackall <mpm@selenic.com> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-03-2614-60/+1483
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: irq_node.handler() should return irqreturn_t m68k: section mismatch fixes: Atari SCSI m68k: section mismatch fixes: DMAsound for Atari MAINTAINERS: Replace dead link to m68k CVS repository by link to new git repository m68k: mac - Add SWIM floppy support m68k: mac - Add a new entry in mac_model to identify the floppy controller type. m68k: Add install target
| * | | | m68k: irq_node.handler() should return irqreturn_tGeert Uytterhoeven2009-03-261-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit b5dc7840b3ebe9c7967dd8ba73db957767009ff9 ("m68k: introduce irq controller") reverted the return type of struct irq_node.handler() from irqreturn_t to int. Change it back to irqreturn_t, else it will give a compiler warning when irqreturn_t is turned into an enum in the near future: | arch/m68k/kernel/ints.c:231: warning: assignment from incompatible pointer type Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | | | m68k: section mismatch fixes: Atari SCSIMichael Schmitz2009-03-262-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | add __init annotations to probe routines Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | | | m68k: section mismatch fixes: DMAsound for AtariMichael Schmitz2009-03-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | add __initdata to driver presets struct Signed-off-By: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | | | MAINTAINERS: Replace dead link to m68k CVS repository by link to new git ↵Geert Uytterhoeven2009-03-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | repository CVS is dead, long live git! Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | | | m68k: mac - Add SWIM floppy supportLaurent Vivier2009-03-266-0/+1305
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It allows to read data from a floppy, but not to write to, and to eject the floppy (useful on our Mac without eject button). Signed-off-by: Laurent Vivier <Laurent@lvivier.info> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | | | m68k: mac - Add a new entry in mac_model to identify the floppy controller type.Laurent Vivier2009-03-262-54/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a field "floppy_type" which can take the following values: MAC_FLOPPY_IWM for an IWM based mac MAC_FLOPPY_SWIM_ADDR1 for a SWIM based mac with controller at VIA1 + 0x1E000 MAC_FLOPPY_SWIM_ADDR2 for a SWIM based mac with controller at VIA1 + 0x16000 MAC_FLOPPY_IOP for an IOP based mac MAC_FLOPPY_AV for an AV based mac Signed-off-by: Laurent Vivier <Laurent@lvivier.info> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | | | m68k: Add install targetLaurent Vivier2009-03-262-0/+55
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables the use of "make install" on m68k architecture to copy kernel to /boot. Signed-off-by: Laurent Vivier <Laurent@lvivier.info> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* | | | Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6Linus Torvalds2009-03-2633-113/+90
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'bkl-removal' of git://git.lwn.net/linux-2.6: Rationalize fasync return values Move FASYNC bit handling to f_op->fasync() Use f_lock to protect f_flags Rename struct file->f_ep_lock
| * | | | Rationalize fasync return valuesJonathan Corbet2009-03-1617-73/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most fasync implementations do something like: return fasync_helper(...); But fasync_helper() will return a positive value at times - a feature used in at least one place. Thus, a number of other drivers do: err = fasync_helper(...); if (err < 0) return err; return 0; In the interests of consistency and more concise code, it makes sense to map positive return values onto zero where ->fasync() is called. Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | Move FASYNC bit handling to f_op->fasync()Jonathan Corbet2009-03-164-27/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removing the BKL from FASYNC handling ran into the challenge of keeping the setting of the FASYNC bit in filp->f_flags atomic with regard to calls to the underlying fasync() function. Andi Kleen suggested moving the handling of that bit into fasync(); this patch does exactly that. As a result, we have a couple of internal API changes: fasync() must now manage the FASYNC bit, and it will be called without the BKL held. As it happens, every fasync() implementation in the kernel with one exception calls fasync_helper(). So, if we make fasync_helper() set the FASYNC bit, we can avoid making any changes to the other fasync() functions - as long as those functions, themselves, have proper locking. Most fasync() implementations do nothing but call fasync_helper() - which has its own lock - so they are easily verified as correct. The BKL had already been pushed down into the rest. The networking code has its own version of fasync_helper(), so that code has been augmented with explicit FASYNC bit handling. Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: David Miller <davem@davemloft.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | Use f_lock to protect f_flagsJonathan Corbet2009-03-1613-9/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Traditionally, changes to struct file->f_flags have been done under BKL protection, or with no protection at all. This patch causes all f_flags changes after file open/creation time to be done under protection of f_lock. This allows the removal of some BKL usage and fixes a number of longstanding (if microscopic) races. Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | Rename struct file->f_ep_lockJonathan Corbet2009-03-164-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This lock moves out of the CONFIG_EPOLL ifdef and becomes f_lock. For now, epoll remains the only user, but a future patch will use it to protect f_flags as well. Cc: Davide Libenzi <davidel@xmailserver.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | | | | Merge branch 'header-fixes-for-linus' of ↵Linus Torvalds2009-03-26120-894/+990
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits) x86: headers cleanup - setup.h emu101k1.h: fix duplicate include of <linux/types.h> compiler-gcc4: conditionalize #error on __KERNEL__ remove __KERNEL_STRICT_NAMES make netfilter use strict integer types make drm headers use strict integer types make MTD headers use strict integer types make most exported headers use strict integer types make exported headers use strict posix types unconditionally include asm/types.h from linux/types.h make linux/types.h as assembly safe Neither asm/types.h nor linux/types.h is required for arch/ia64/include/asm/fpu.h headers_check fix cleanup: linux/reiserfs_fs.h headers_check fix cleanup: linux/nubus.h headers_check fix cleanup: linux/coda_psdev.h headers_check fix: x86, setup.h headers_check fix: x86, prctl.h headers_check fix: linux/reinserfs_fs.h headers_check fix: linux/socket.h headers_check fix: linux/nubus.h ... Manually fix trivial conflicts in: include/linux/netfilter/xt_limit.h include/linux/netfilter/xt_statistic.h
| * | | | | x86: headers cleanup - setup.hCyrill Gorcunov2009-03-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup 'make headers_check' warn us about leaking of kernel private (mostly compile time vars) data to userspace in headers. Fix it. Guard this one by __KERNEL__. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | Merge commit 'v2.6.29' into core/header-fixesIngo Molnar2009-03-261721-43894/+65501
| |\ \ \ \ \ | | | |/ / / | | |/| | |
| * | | | | emu101k1.h: fix duplicate include of <linux/types.h>Arnd Bergmann2009-03-261-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup The earlier patch 'make most exported headers use strict integer types' accidentally includes <linux/types.h> both from the common and from the kernel-only parts. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | compiler-gcc4: conditionalize #error on __KERNEL__H. Peter Anvin2009-03-261-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Fix for exported headers We only want to error out on specific gcc versions if we are actually building the kernel, so conditionalize the #if...#error on __KERNEL__. Based on a patchset by Arnd Bergmann <arnd@arndb.de>. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | remove __KERNEL_STRICT_NAMESArnd Bergmann2009-03-262-13/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the last used of non-strict names gone from the exported header files, we can remove the old libc5 compatibility cruft from our headers and only export strict types. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | make netfilter use strict integer typesArnd Bergmann2009-03-2639-190/+260
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Netfilter traditionally uses BSD integer types in its interface headers. This changes it to use the Linux strict integer types, like everyone else. Cc: netfilter-devel@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | make drm headers use strict integer typesArnd Bergmann2009-03-266-188/+190
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The drm headers are traditionally shared with BSD and could not use the strict linux integer types. This is over now, so we can use our own types now. Cc: David Airlie <airlied@linux.ie> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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