- 18 7月, 2007 12 次提交
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由 Christoph Lameter 提交于
Changes the error reporting format to loosely follow lockdep. If data corruption is detected then we generate the following lines: ============================================ BUG <slab-cache>: <problem> -------------------------------------------- INFO: <more information> [possibly multiple times] <object dump> FIX <slab-cache>: <remedial action> This also adds some more intelligence to the data corruption detection. Its now capable of figuring out the start and end. Add a comment on how to configure SLUB so that a production system may continue to operate even though occasional slab corruption occur through a misbehaving kernel component. See "Emergency operations" in Documentation/vm/slub.txt. [akpm@linux-foundation.org: build fix] Signed-off-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rusty Russell 提交于
I can never remember what the function to register to receive VM pressure is called. I have to trace down from __alloc_pages() to find it. It's called "set_shrinker()", and it needs Your Help. 1) Don't hide struct shrinker. It contains no magic. 2) Don't allocate "struct shrinker". It's not helpful. 3) Call them "register_shrinker" and "unregister_shrinker". 4) Call the function "shrink" not "shrinker". 5) Reduce the 17 lines of waffly comments to 13, but document it properly. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Cc: David Chinner <dgc@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andy Whitcroft 提交于
When we are out of memory of a suitable size we enter reclaim. The current reclaim algorithm targets pages in LRU order, which is great for fairness at order-0 but highly unsuitable if you desire pages at higher orders. To get pages of higher order we must shoot down a very high proportion of memory; >95% in a lot of cases. This patch set adds a lumpy reclaim algorithm to the allocator. It targets groups of pages at the specified order anchored at the end of the active and inactive lists. This encourages groups of pages at the requested orders to move from active to inactive, and active to free lists. This behaviour is only triggered out of direct reclaim when higher order pages have been requested. This patch set is particularly effective when utilised with an anti-fragmentation scheme which groups pages of similar reclaimability together. This patch set is based on Peter Zijlstra's lumpy reclaim V2 patch which forms the foundation. Credit to Mel Gorman for sanitity checking. Mel said: The patches have an application with hugepage pool resizing. When lumpy-reclaim is used used with ZONE_MOVABLE, the hugepages pool can be resized with greater reliability. Testing on a desktop machine with 2GB of RAM showed that growing the hugepage pool with ZONE_MOVABLE on it's own was very slow as the success rate was quite low. Without lumpy-reclaim, each attempt to grow the pool by 100 pages would yield 1 or 2 hugepages. With lumpy-reclaim, getting 40 to 70 hugepages on each attempt was typical. [akpm@osdl.org: ia64 pfn_to_nid fixes and loop cleanup] [bunk@stusta.de: static declarations for internal functions] [a.p.zijlstra@chello.nl: initial lumpy V2 implementation] Signed-off-by: NAndy Whitcroft <apw@shadowen.org> Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: NMel Gorman <mel@csn.ul.ie> Acked-by: NMel Gorman <mel@csn.ul.ie> Cc: Bob Picco <bob.picco@hp.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mel Gorman 提交于
This patch adds a new parameter for sizing ZONE_MOVABLE called movablecore=. While kernelcore= is used to specify the minimum amount of memory that must be available for all allocation types, movablecore= is used to specify the minimum amount of memory that is used for migratable allocations. The amount of memory used for migratable allocations determines how large the huge page pool could be dynamically resized to at runtime for example. How movablecore is actually handled is that the total number of pages in the system is calculated and a value is set for kernelcore that is kernelcore == totalpages - movablecore Both kernelcore= and movablecore= can be safely specified at the same time. Signed-off-by: NMel Gorman <mel@csn.ul.ie> Acked-by: NAndy Whitcroft <apw@shadowen.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mel Gorman 提交于
This patch adds the kernelcore= parameter for x86. Once all patches are applied, a new command-line parameter exist and a new sysctl. This patch adds the necessary documentation. From: Yasunori Goto <y-goto@jp.fujitsu.com> When "kernelcore" boot option is specified, kernel can't boot up on ia64 because of an infinite loop. In addition, the parsing code can be handled in an architecture-independent manner. This patch uses common code to handle the kernelcore= parameter. It is only available to architectures that support arch-independent zone-sizing (i.e. define CONFIG_ARCH_POPULATES_NODE_MAP). Other architectures will ignore the boot parameter. [bunk@stusta.de: make cmdline_parse_kernelcore() static] Signed-off-by: NMel Gorman <mel@csn.ul.ie> Signed-off-by: NYasunori Goto <y-goto@jp.fujitsu.com> Acked-by: NAndy Whitcroft <apw@shadowen.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mel Gorman 提交于
Huge pages are not movable so are not allocated from ZONE_MOVABLE. However, as ZONE_MOVABLE will always have pages that can be migrated or reclaimed, it can be used to satisfy hugepage allocations even when the system has been running a long time. This allows an administrator to resize the hugepage pool at runtime depending on the size of ZONE_MOVABLE. This patch adds a new sysctl called hugepages_treat_as_movable. When a non-zero value is written to it, future allocations for the huge page pool will use ZONE_MOVABLE. Despite huge pages being non-movable, we do not introduce additional external fragmentation of note as huge pages are always the largest contiguous block we care about. [akpm@linux-foundation.org: various fixes] Signed-off-by: NMel Gorman <mel@csn.ul.ie> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mel Gorman 提交于
The following 8 patches against 2.6.20-mm2 create a zone called ZONE_MOVABLE that is only usable by allocations that specify both __GFP_HIGHMEM and __GFP_MOVABLE. This has the effect of keeping all non-movable pages within a single memory partition while allowing movable allocations to be satisfied from either partition. The patches may be applied with the list-based anti-fragmentation patches that groups pages together based on mobility. The size of the zone is determined by a kernelcore= parameter specified at boot-time. This specifies how much memory is usable by non-movable allocations and the remainder is used for ZONE_MOVABLE. Any range of pages within ZONE_MOVABLE can be released by migrating the pages or by reclaiming. When selecting a zone to take pages from for ZONE_MOVABLE, there are two things to consider. First, only memory from the highest populated zone is used for ZONE_MOVABLE. On the x86, this is probably going to be ZONE_HIGHMEM but it would be ZONE_DMA on ppc64 or possibly ZONE_DMA32 on x86_64. Second, the amount of memory usable by the kernel will be spread evenly throughout NUMA nodes where possible. If the nodes are not of equal size, the amount of memory usable by the kernel on some nodes may be greater than others. By default, the zone is not as useful for hugetlb allocations because they are pinned and non-migratable (currently at least). A sysctl is provided that allows huge pages to be allocated from that zone. This means that the huge page pool can be resized to the size of ZONE_MOVABLE during the lifetime of the system assuming that pages are not mlocked. Despite huge pages being non-movable, we do not introduce additional external fragmentation of note as huge pages are always the largest contiguous block we care about. Credit goes to Andy Whitcroft for catching a large variety of problems during review of the patches. This patch creates an additional zone, ZONE_MOVABLE. This zone is only usable by allocations which specify both __GFP_HIGHMEM and __GFP_MOVABLE. Hot-added memory continues to be placed in their existing destination as there is no mechanism to redirect them to a specific zone. [y-goto@jp.fujitsu.com: Fix section mismatch of memory hotplug related code] [akpm@linux-foundation.org: various fixes] Signed-off-by: NMel Gorman <mel@csn.ul.ie> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: NYasunori Goto <y-goto@jp.fujitsu.com> Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mel Gorman 提交于
It is often known at allocation time whether a page may be migrated or not. This patch adds a flag called __GFP_MOVABLE and a new mask called GFP_HIGH_MOVABLE. Allocations using the __GFP_MOVABLE can be either migrated using the page migration mechanism or reclaimed by syncing with backing storage and discarding. An API function very similar to alloc_zeroed_user_highpage() is added for __GFP_MOVABLE allocations called alloc_zeroed_user_highpage_movable(). The flags used by alloc_zeroed_user_highpage() are not changed because it would change the semantics of an existing API. After this patch is applied there are no in-kernel users of alloc_zeroed_user_highpage() so it probably should be marked deprecated if this patch is merged. Note that this patch includes a minor cleanup to the use of __GFP_ZERO in shmem.c to keep all flag modifications to inode->mapping in the shmem_dir_alloc() helper function. This clean-up suggestion is courtesy of Hugh Dickens. Additional credit goes to Christoph Lameter and Linus Torvalds for shaping the concept. Credit to Hugh Dickens for catching issues with shmem swap vector and ramfs allocations. [akpm@linux-foundation.org: build fix] [hugh@veritas.com: __GFP_ZERO cleanup] Signed-off-by: NMel Gorman <mel@csn.ul.ie> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 NeilBrown 提交于
do_generic_mapping_read currently samples the i_size at the start and doesn't do so again unless it needs to call ->readpage to load a page. After ->readpage it has to re-sample i_size as a truncate may have caused that page to be filled with zeros, and the read() call should not see these. However there are other activities that might cause ->readpage to be called on a page between the time that do_generic_mapping_read samples i_size and when it finds that it has an uptodate page. These include at least read-ahead and possibly another thread performing a read. So do_generic_mapping_read must sample i_size *after* it has an uptodate page. Thus the current sampling at the start and after a read can be replaced with a sampling before the copy-out. The same change applied to __generic_file_splice_read. Note that this fixes any race with truncate_complete_page, but does not fix a possible race with truncate_partial_page. If a partial truncate happens after do_generic_mapping_read samples i_size and before the copy_out, the nuls that truncate_partial_page place in the page could be copied out incorrectly. I think the best fix for that is to *not* zero out parts of the page in truncate_partial_page, but rather to zero out the tail of a page when increasing i_size. Signed-off-by: NNeil Brown <neilb@suse.de> Cc: Jens Axboe <jens.axboe@oracle.com> Acked-by: NNick Piggin <npiggin@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Martin Schwidefsky 提交于
Nobody is using ptep_test_and_clear_dirty and ptep_clear_flush_dirty. Remove the functions from all architectures. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Martin Schwidefsky 提交于
The last user of ptep_establish in mm/ is long gone. Remove the architecture primitive as well. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yoann Padioleau 提交于
Signed-off-by: NYoann Padioleau <padator@wanadoo.fr> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 7月, 2007 28 次提交
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ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6由 Linus Torvalds 提交于
* 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: add idr_init to drm_stub.c drm: fix problem with SiS typedef with sisfb enabled.
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由 Dave Airlie 提交于
Brown paper bag for me this patch chunk didn't make it in the first application Signed-off-by: NDave Airlie <airlied@linux.ie>
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由 Dave Airlie 提交于
Reported by: Avuton Olrich <avuton@gmail.com> Signed-off-by: NDave Airlie <airlied@linux.ie>
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ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6由 Linus Torvalds 提交于
* 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: convert drawable code to using idr drm: convert drm context code to use Linux idr
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由 Dave Airlie 提交于
This converts the code for allocating drawables to the Linux idr, Fixes from: Michel Dänzer <michel@tungstengraphics.com>, Kristian Høgsberg <krh@redhat.com> Signed-off-by: NDave Airlie <airlied@linux.ie>
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由 Dave Airlie 提交于
This converts the drm context allocator to an idr, using the new idr interface features from Kristian. Fixes from Kristian Hoegsberg <krh@redhat.com> Signed-off-by: NDave Airlie <airlied@linux.ie>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (209 commits) [POWERPC] Create add_rtc() function to enable the RTC CMOS driver [POWERPC] Add H_ILLAN_ATTRIBUTES hcall number [POWERPC] xilinxfb: Parameterize xilinxfb platform device registration [POWERPC] Oprofile support for Power 5++ [POWERPC] Enable arbitary speed tty ioctls and split input/output speed [POWERPC] Make drivers/char/hvc_console.c:khvcd() static [POWERPC] Remove dead code for preventing pread() and pwrite() calls [POWERPC] Remove unnecessary #undef printk from prom.c [POWERPC] Fix typo in Ebony default DTS [POWERPC] Check for NULL ppc_md.init_IRQ() before calling [POWERPC] Remove extra return statement [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED [POWERPC] pasemi: Rename platform [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports [POWERPC] Add __read_mostly support for powerpc [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane [POWERPC] Create a dummy zImage if no valid platform has been selected [POWERPC] PS3: Bootwrapper support. [POWERPC] powermac i2c: Use mutex [POWERPC] Schedule removal of arch/ppc ... Fixed up conflicts manually in: Documentation/feature-removal-schedule.txt arch/powerpc/kernel/pci_32.c arch/powerpc/kernel/pci_64.c include/asm-powerpc/pci.h and asked the powerpc people to double-check the result..
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由 Linus Torvalds 提交于
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (37 commits) forcedeth bug fix: realtek phy forcedeth bug fix: vitesse phy forcedeth bug fix: cicada phy atl1: reorder atl1_main functions atl1: fix excessively indented code atl1: cleanup atl1_main atl1: header file cleanup atl1: remove irq_sem cdc-subset to support new vendor/product ID 8139cp: implement the missing dev->tx_timeout myri10ge: Remove nonsensical limit in the tx done routine gianfar: kill unused header EP93XX_ETH must select MII macb: Add multicast capability macb: Use generic PHY layer s390: add barriers to qeth driver s390: scatter-gather for inbound traffic in qeth driver eHEA: Introducing support vor DLPAR memory add Fix a potential NULL pointer dereference in free_shared_mem() in drivers/net/s2io.c [PATCH] softmac: Fix ESSID problem ...
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由 Linus Torvalds 提交于
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SERIAL] SUNHV: Fix jerky console on LDOM guests. [SPARC64]: Fix race between MD update and dr-cpu add. [SPARC64]: SMP build fix.
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由 David Miller 提交于
All of the clockevent notifiers expect a pointer to an "unsigned int" cpu argument, but hrtimer_cpu_notify() passes in a pointer to a long. [ Discussed with and ok by Thomas Gleixner ] Signed-off-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David S. Miller 提交于
Mixing putchar() and write() hvcalls does not work %100 correctly. But we should be using write() all the time if we can, even from ->start_tx(), anyways. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
We need to make sure the MD update occurs before we try to process dr-cpu configure requests. MD update and dr-cpu were being processed by seperate threads so that did not happen occaisionally. Fix this by executing all domain services data packets from a single thread, in order. This will help simplify some other things as well. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Fabio Massimo Di Nitto 提交于
The UP build fix had some unintended consequences. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Linus Torvalds 提交于
The SCSI code can be compiled modular, but BLK_DEV_BSG currently cannot, and depends on the SCSI layer. So make sure that it depends on the SCSI layer being compiled in, not just available as a module. Noticed by Jeff Garzik and S.Çağlar Onur. Cc: Jeff Garzik <jeff@garzik.org> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: S.Çağlar Onur <caglar@pardus.org.tr> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
This should avoid build problems on architectures without a "readb()", that got bitten by check_signature() being uninlined. Noted by Heiko Carstens. Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ayaz Abdulla 提交于
This patch contains errata fixes for the realtek phy. Signed-off-by: NAyaz Abdulla <aabdulla@nvidia.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Ayaz Abdulla 提交于
This patch contains errata fixes for the vitesse phy. Signed-off-by: NAyaz Abdulla <aabdulla@nvidia.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Ayaz Abdulla 提交于
This patch contains errata fixes for the cicada phy. It only renamed the defines to be phy specific. Signed-off-by: NAyaz Abdulla <aabdulla@nvidia.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Cliburn 提交于
Reorder functions in atl1_main into more logical groupings to make the code easier to follow. This patch is large, but it's harmless; it neither adds nor removes any functionality whatsoever. Signed-off-by: NJay Cliburn <jacliburn@bellsouth.net> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Cliburn 提交于
Move excessively indented code to separate functions. Also move ring pointer initialization to its own function. Signed-off-by: NJay Cliburn <jacliburn@bellsouth.net> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Cliburn 提交于
Fix indentation, remove dead code, improve some comments, change dev_dbg to dev_printk. Signed-off-by: NJay Cliburn <jacliburn@bellsouth.net> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Cliburn 提交于
Remove unused structure members, improve comments, break long comment lines, rename a constant to be consistent with others in the file. Signed-off-by: NJay Cliburn <jacliburn@bellsouth.net> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Cliburn 提交于
Remove unnecessary irq_sem code. Signed-off-by: NChris Snook <csnook@redhat.com> Signed-off-by: NJay Cliburn <jacliburn@bellsouth.net> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 jing xiang 提交于
This patch is for cdc subset to support Mavell vendor/product ID. Signed-off-by: NJing Xiang <everxiang@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Francois Romieu 提交于
Signed-off-by: NMika Lansirinne <mika.lansirinne@stonesoft.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Brice Goglin 提交于
Remove nonsensical limit in the tx done routine. Specifically, the loop will always terminate after processing <= 1 rings worth of frames, as the mcp index is not refetched, so the removed conditional could never be true. Signed-off-by: NBrice Goglin <brice@myri.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Kumar Gala 提交于
A long time ago we used OCP with the gianfar driver. Eventually when we kill arch/ppc including this will cause issues so lets just kill it now. Signed-off-by: NKumar Gala <galak@kernel.crashing.org> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 John Donoghue 提交于
CONFIG_EP93XX_ETH=y, CONFIG_MII=n results in an obvious link error. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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