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2013-04-29powerpc/mm/numa: use setup_nr_node_ids() instead of opencoding.Cody P Schafer1-6/+3
[sfr@canb.auug.org.au: add missing semicolon] Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29x86/mm/numa: use setup_nr_node_ids() instead of opencoding.Cody P Schafer1-6/+3
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm: speedup in __early_pfn_to_nidRuss Anderson1-1/+14
When booting on a large memory system, the kernel spends considerable time in memmap_init_zone() setting up memory zones. Analysis shows significant time spent in __early_pfn_to_nid(). The routine memmap_init_zone() checks each PFN to verify the nid is valid. __early_pfn_to_nid() sequentially scans the list of pfn ranges to find the right range and returns the nid. This does not scale well. On a 4 TB (single rack) system there are 308 memory ranges to scan. The higher the PFN the more time spent sequentially spinning through memory ranges. Since memmap_init_zone() increments pfn, it will almost always be looking for the same range as the previous pfn, so check that range first. If it is in the same range, return that nid. If not, scan the list as before. A 4 TB (single rack) UV1 system takes 512 seconds to get through the zone code. This performance optimization reduces the time by 189 seconds, a 36% improvement. A 2 TB (single rack) UV2 system goes from 212.7 seconds to 99.8 seconds, a 112.9 second (53%) reduction. [akpm@linux-foundation.org: make the statics __meminitdata] [akpm@linux-foundation.org: fix comment formatting] [akpm@linux-foundation.org: fix ia64, per yinghai] [akpm@linux-foundation.org: add missing semicolon, per Tony] Signed-off-by: Russ Anderson <rja@sgi.com> Cc: David Rientjes <rientjes@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Tested-by: "Luck, Tony" <tony.luck@intel.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Lin Feng <linfeng@cn.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29x86-64: fall back to regular page vmemmap on allocation failureJohannes Weiner1-20/+26
Memory hotplug can happen on a machine under load, memory shortness and fragmentation, so huge page allocations for the vmemmap are not guaranteed to succeed. Try to fall back to regular pages before failing the hotplug event completely. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Bernhard Schmidt <Bernhard.Schmidt@lrz.de> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29x86-64: use vmemmap_populate_basepages() for !pse setupsJohannes Weiner1-40/+38
We already have generic code to allocate vmemmap with regular pages, use it. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Bernhard Schmidt <Bernhard.Schmidt@lrz.de> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: David Miller <davem@davemloft.net> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29x86-64: remove dead debugging code for !pse setupsJohannes Weiner1-3/+0
No need to maintain addr_end and p_end when they are never actually read anywhere on !pse setups. Remove the dead code. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Bernhard Schmidt <Bernhard.Schmidt@lrz.de> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29sparse-vmemmap: specify vmemmap population range in bytesJohannes Weiner6-43/+25
The sparse code, when asking the architecture to populate the vmemmap, specifies the section range as a starting page and a number of pages. This is an awkward interface, because none of the arch-specific code actually thinks of the range in terms of 'struct page' units and always translates it to bytes first. In addition, later patches mix huge page and regular page backing for the vmemmap. For this, they need to call vmemmap_populate_basepages() on sub-section ranges with PAGE_SIZE and PMD_SIZE in mind. But these are not necessarily multiples of the 'struct page' size and so this unit is too coarse. Just translate the section range into bytes once in the generic sparse code, then pass byte ranges down the stack. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Bernhard Schmidt <Bernhard.Schmidt@lrz.de> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: David S. Miller <davem@davemloft.net> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29arm: set the page table freeing ceiling to TASK_SIZECatalin Marinas1-0/+9
ARM processors with LPAE enabled use 3 levels of page tables, with an entry in the top level (pgd) covering 1GB of virtual space. Because of the branch relocation limitations on ARM, the loadable modules are mapped 16MB below PAGE_OFFSET, making the corresponding 1GB pgd shared between kernel modules and user space. If free_pgtables() is called with the default ceiling 0, free_pgd_range() (and subsequently called functions) also frees the page table shared between user space and kernel modules (which is normally handled by the ARM-specific pgd_free() function). This patch changes defines the ARM USER_PGTABLES_CEILING to TASK_SIZE when CONFIG_ARM_LPAE is enabled. Note that the pgd_free() function already checks the presence of the shared pmd page allocated by pgd_alloc() and frees it, though with ceiling 0 this wasn't necessary. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Hugh Dickins <hughd@google.com> Cc: <stable@vger.kernel.org> [3.3+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm, vmalloc: change iterating a vmlist to find_vm_area()Joonsoo Kim3-24/+7
This patchset removes vm_struct list management after initializing vmalloc. Adding and removing an entry to vmlist is linear time complexity, so it is inefficient. If we maintain this list, overall time complexity of adding and removing area to vmalloc space is O(N), although we use rbtree for finding vacant place and it's time complexity is just O(logN). And vmlist and vmlist_lock is used many places of outside of vmalloc.c. It is preferable that we hide this raw data structure and provide well-defined function for supporting them, because it makes that they cannot mistake when manipulating theses structure and it makes us easily maintain vmalloc layer. For kexec and makedumpfile, I export vmap_area_list, instead of vmlist. This comes from Atsushi's recommendation. For more information, please refer below link. https://lkml.org/lkml/2012/12/6/184 This patch: The purpose of iterating a vmlist is finding vm area with specific virtual address. find_vm_area() is provided for this purpose and more efficient, because it uses a rbtree. So change it. Signed-off-by: Joonsoo Kim <js1304@gmail.com> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp> Cc: Dave Anderson <anderson@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/hugetlb: add more arch-defined huge_pte functionsGerald Schaefer10-57/+103
Commit abf09bed3cce ("s390/mm: implement software dirty bits") introduced another difference in the pte layout vs. the pmd layout on s390, thoroughly breaking the s390 support for hugetlbfs. This requires replacing some more pte_xxx functions in mm/hugetlbfs.c with a huge_pte_xxx version. This patch introduces those huge_pte_xxx functions and their generic implementation in asm-generic/hugetlb.h, which will now be included on all architectures supporting hugetlbfs apart from s390. This change will be a no-op for those architectures. [akpm@linux-foundation.org: fix warning] Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Hugh Dickins <hughd@google.com> Cc: Hillf Danton <dhillf@gmail.com> Acked-by: Michal Hocko <mhocko@suse.cz> [for !s390 parts] Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/x86: use free_highmem_page() to free highmem pages into buddy systemJiang Liu2-10/+1
Use helper function free_highmem_page() to free highmem pages into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Cong Wang <amwang@redhat.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Attilio Rao <attilio.rao@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/um: use free_highmem_page() to free highmem pages into buddy systemJiang Liu1-13/+3
Use helper function free_highmem_page() to free highmem pages into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/SPARC: use free_highmem_page() to free highmem pages into buddy systemJiang Liu1-10/+2
Use helper function free_highmem_page() to free highmem pages into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/PPC: use free_highmem_page() to free highmem pages into buddy systemJiang Liu1-5/+1
Use helper function free_highmem_page() to free highmem pages into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: Alexander Graf <agraf@suse.de> Cc: "Suzuki K. Poulose" <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/MIPS: use free_highmem_page() to free highmem pages into buddy systemJiang Liu1-5/+1
Use helper function free_highmem_page() to free highmem pages into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Daney <david.daney@cavium.com> Cc: Cong Wang <amwang@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/microblaze: use free_highmem_page() to free highmem pages into buddy systemJiang Liu1-5/+1
Use helper function free_highmem_page() to free highmem pages into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/metag: use free_highmem_page() to free highmem pages into buddy systemJiang Liu1-8/+2
Use helper function free_highmem_page() to free highmem pages into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: James Hogan <james.hogan@imgtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/FRV: use free_highmem_page() to free highmem pages into buddy systemJiang Liu1-4/+2
Use helper function free_highmem_page() to free highmem pages into the buddy system. Also fix a bug that totalhigh_pages should be increased when freeing a highmem page into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/ARM: use free_highmem_page() to free highmem pages into buddy systemJiang Liu1-5/+2
Use helper function free_highmem_page() to free highmem pages into the buddy system. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/metag: use common help functions to free reserved pagesJiang Liu1-19/+2
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: James Hogan <james.hogan@imgtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/arc: use common help functions to free reserved pagesJiang Liu1-21/+2
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/xtensa: use common help functions to free reserved pagesJiang Liu1-18/+3
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/x86: use common help functions to free reserved pagesJiang Liu2-7/+3
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> 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>
2013-04-29mm/unicore32: use common help functions to free reserved pagesJiang Liu1-25/+3
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/um: use common help functions to free reserved pagesJiang Liu1-9/+1
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/SH: use common help functions to free reserved pagesJiang Liu1-23/+3
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/score: use common help functions to free reserved pagesJiang Liu1-28/+5
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/s390: use common help functions to free reserved pagesJiang Liu1-29/+6
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/ppc: use common help functions to free reserved pagesJiang Liu5-45/+6
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Anatolij Gustschin <agust@denx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/parisc: use common help functions to free reserved pagesJiang Liu1-21/+2
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/openrisc: use common help functions to free reserved pagesJiang Liu1-24/+3
Use common help functions to free reserved pages. Also include <asm/sections.h> to avoid local declarations. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Jonas Bonn <jonas@southpole.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/mn10300: use common help functions to free reserved pagesJiang Liu1-21/+2
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/MIPS: use common help functions to free reserved pagesJiang Liu2-24/+11
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/microblaze: use common help functions to free reserved pagesJiang Liu2-27/+2
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/m68k: use common help functions to free reserved pagesJiang Liu1-22/+2
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/m32r: use common help functions to free reserved pagesJiang Liu1-23/+3
Use common help functions to free reserved pages. Also include <asm/sections.h> to avoid local declarations. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/IA64: use common help functions to free reserved pagesJiang Liu1-19/+4
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/h8300: use common help functions to free reserved pagesJiang Liu1-27/+3
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/FRV: use common help functions to free reserved pagesJiang Liu1-30/+4
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/cris: use common help functions to free reserved pagesJiang Liu1-14/+2
Use common help functions to free reserved pages. Also include <asm/sections.h> to avoid local declaration. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/c6x: use common help functions to free reserved pagesJiang Liu1-28/+2
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/blackfin: use common help functions to free reserved pagesJiang Liu1-19/+3
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/avr32: use common help functions to free reserved pagesJiang Liu1-22/+2
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/ARM: use common help functions to free reserved pagesJiang Liu2-56/+18
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm/alpha: use common help functions to free reserved pagesJiang Liu3-26/+6
Use common help functions to free reserved pages. Also include <asm/sections.h> to avoid local declarations. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mm, show_mem: suppress page counts in non-blockable contextsDavid Rientjes5-0/+12
On large systems with a lot of memory, walking all RAM to determine page types may take a half second or even more. In non-blockable contexts, the page allocator will emit a page allocation failure warning unless __GFP_NOWARN is specified. In such contexts, irqs are typically disabled and such a lengthy delay may even result in NMI watchdog timeouts. To fix this, suppress the page walk in such contexts when printing the page allocation failure warning. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Mel Gorman <mgorman@suse.de> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29mkcapflags.pl: convert to mkcapflags.shRob Landley3-50/+43
Generate asm-x86/cpufeature.h with posix-2008 commands instead of perl. Signed-off-by: Rob Landley <rob@landley.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Josh Boyer <jwboyer@redhat.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: David Howells <dhowell@redhat.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29Merge tag 'usb-3.10-rc1' of ↵Linus Torvalds20-36/+52
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB patches from Greg Kroah-Hartman: "Here's the big USB pull request for 3.10-rc1. Lots of USB patches here, the majority being USB gadget changes and USB-serial driver cleanups, the rest being ARM build fixes / cleanups, and individual driver updates. We also finally got some chipidea fixes, which have been delayed for a number of kernel releases, as the maintainer has now reappeared. All of these have been in linux-next for a while" * tag 'usb-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (568 commits) USB: ehci-msm: USB_MSM_OTG needs USB_PHY USB: OHCI: avoid conflicting platform drivers USB: OMAP: ISP1301 needs USB_PHY USB: lpc32xx: ISP1301 needs USB_PHY USB: ftdi_sio: enable two UART ports on ST Microconnect Lite usb: phy: tegra: don't call into tegra-ehci directly usb: phy: phy core cannot yet be a module USB: Fix initconst in ehci driver usb-storage: CY7C68300A chips do not support Cypress ATACB USB: serial: option: Added support Olivetti Olicard 145 USB: ftdi_sio: correct ST Micro Connect Lite PIDs ARM: mxs_defconfig: add CONFIG_USB_PHY ARM: imx_v6_v7_defconfig: add CONFIG_USB_PHY usb: phy: remove exported function from __init section usb: gadget: zero: put function instances on unbind usb: gadget: f_sourcesink.c: correct a copy-paste misnomer usb: gadget: cdc2: fix error return code in cdc_do_config() usb: gadget: multi: fix error return code in rndis_do_config() usb: gadget: f_obex: fix error return code in obex_bind() USB: storage: convert to use module_usb_driver() ...
2013-04-29Merge tag 'tty-3.10-rc1' of ↵Linus Torvalds6-306/+16
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver update from Greg Kroah-Hartman: "Here's the big tty/serial driver merge request for 3.10-rc1 Once again, Jiri has a number of TTY driver fixes and cleanups, and Peter Hurley came through with a bunch of ldisc fixes that resolve a number of reported issues. There are some other serial driver cleanups as well. All of these have been in the linux-next tree for a while" * tag 'tty-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (117 commits) tty/serial/sirf: fix MODULE_DEVICE_TABLE serial: mxs: drop superfluous {get|put}_device serial: mxs: fix buffer overflow ARM: PL011: add support for extended FIFO-size of PL011-r1p5 serial_core.c: add put_device() after device_find_child() tty: Fix unsafe bit ops in tty_throttle_safe/unthrottle_safe serial: sccnxp: Replace pdata.init/exit with regulator API serial: sccnxp: Do not override device name TTY: pty, fix compilation warning TTY: rocket, fix compilation warning TTY: ircomm: fix DTR being raised on hang up TTY: synclinkmp: fix DTR being raised on hang up TTY: synclink_gt: fix DTR being raised on hang up TTY: synclink: fix DTR being raised on hang up serial: 8250_dw: Fix the stub for dw8250_probe_acpi() serial: 8250_dw: Convert to devm_ioremap() serial: 8250_dw: Set port capabilities based on CPR register serial: 8250_dw: Let ACPI code extract the DMA client info serial: 8250_dw: Support clk framework also with ACPI serial: 8250_dw: Enable runtime PM ...
2013-04-29Merge tag 'char-misc-3.10-rc1' of ↵Linus Torvalds2-0/+12
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver update from Greg Kroah-Hartman: "Here's the big char / misc driver update for 3.10-rc1 A number of various driver updates, the majority being new functionality in the MEI driver subsystem (it's now a subsystem, it started out just a single driver), extcon updates, memory updates, hyper-v updates, and a bunch of other small stuff that doesn't fit in any other tree. All of these have been in linux-next for a while" * tag 'char-misc-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (148 commits) Tools: hv: Fix a checkpatch warning tools: hv: skip iso9660 mounts in hv_vss_daemon tools: hv: use FIFREEZE/FITHAW in hv_vss_daemon tools: hv: use getmntent in hv_vss_daemon Tools: hv: Fix a checkpatch warning tools: hv: fix checks for origin of netlink message in hv_vss_daemon Tools: hv: fix warnings in hv_vss_daemon misc: mark spear13xx-pcie-gadget as broken mei: fix krealloc() misuse in in mei_cl_irq_read_msg() mei: reduce flow control only for completed messages mei: reseting -> resetting mei: fix reading large reposnes mei: revamp mei_irq_read_client_message function mei: revamp mei_amthif_irq_read_message mei: revamp hbm state machine Revert "drivers/scsi: use module_pcmcia_driver() in pcmcia drivers" Revert "scsi: pcmcia: nsp_cs: remove module init/exit function prototypes" scsi: pcmcia: nsp_cs: remove module init/exit function prototypes mei: wd: fix line over 80 characters misc: tsl2550: Use dev_pm_ops ...
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