- 13 11月, 2013 40 次提交
-
-
由 Zhang Yanfei 提交于
Signed-off-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Krzysztof Kozlowski 提交于
During swapoff the frontswap_map was NULL-ified before calling frontswap_invalidate_area(). However the frontswap_invalidate_area() exits early if frontswap_map is NULL. Invalidate was never called during swapoff. This patch moves frontswap_map_set() in swapoff just after calling frontswap_invalidate_area() so outside of locks (swap_lock and swap_info_struct->lock). This shouldn't be a problem as during swapon the frontswap_map_set() is called also outside of any locks. Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: NSeth Jennings <sjenning@linux.vnet.ibm.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Shaohua Li <shli@fusionio.com> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Seth Jennings 提交于
Signed-off-by: NSeth Jennings <sjenning@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Catalin Marinas 提交于
Commit 248ac0e1 ("mm/vmalloc: remove guard page from between vmap blocks") had the side effect of making vmap_area.va_end member point to the next vmap_area.va_start. This was creating an artificial reference to vmalloc'ed objects and kmemleak was rarely reporting vmalloc() leaks. This patch marks the vmap_area containing pointers explicitly and reduces the min ref_count to 2 as vm_struct still contains a reference to the vmalloc'ed object. The kmemleak add_scan_area() function has been improved to allow a SIZE_MAX argument covering the rest of the object (for simpler calling sites). Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Zhang Yanfei 提交于
We pass the number of pages which hold page structs of a memory section to free_map_bootmem(). This is right when !CONFIG_SPARSEMEM_VMEMMAP but wrong when CONFIG_SPARSEMEM_VMEMMAP. When CONFIG_SPARSEMEM_VMEMMAP, we should pass the number of pages of a memory section to free_map_bootmem. So the fix is removing the nr_pages parameter. When CONFIG_SPARSEMEM_VMEMMAP, we directly use the prefined marco PAGES_PER_SECTION in free_map_bootmem. When !CONFIG_SPARSEMEM_VMEMMAP, we calculate page numbers needed to hold the page structs for a memory section and use the value in free_map_bootmem(). This was found by reading the code. And I have no machine that support memory hot-remove to test the bug now. Signed-off-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Reviewed-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Toshi Kani <toshi.kani@hp.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Zhang Yanfei 提交于
For below functions, - sparse_add_one_section() - kmalloc_section_memmap() - __kmalloc_section_memmap() - __kfree_section_memmap() they are always invoked to operate on one memory section, so it is redundant to always pass a nr_pages parameter, which is the page numbers in one section. So we can directly use predefined macro PAGES_PER_SECTION instead of passing the parameter. Signed-off-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Toshi Kani <toshi.kani@hp.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Ying Han 提交于
The memory.numa_stat file was not hierarchical. Memory charged to the children was not shown in parent's numa_stat. This change adds the "hierarchical_" stats to the existing stats. The new hierarchical stats include the sum of all children's values in addition to the value of the memcg. Tested: Create cgroup a, a/b and run workload under b. The values of b are included in the "hierarchical_*" under a. $ cd /sys/fs/cgroup $ echo 1 > memory.use_hierarchy $ mkdir a a/b Run workload in a/b: $ (echo $BASHPID >> a/b/cgroup.procs && cat /some/file && bash) & The hierarchical_ fields in parent (a) show use of workload in a/b: $ cat a/memory.numa_stat total=0 N0=0 N1=0 N2=0 N3=0 file=0 N0=0 N1=0 N2=0 N3=0 anon=0 N0=0 N1=0 N2=0 N3=0 unevictable=0 N0=0 N1=0 N2=0 N3=0 hierarchical_total=908 N0=552 N1=317 N2=39 N3=0 hierarchical_file=850 N0=549 N1=301 N2=0 N3=0 hierarchical_anon=58 N0=3 N1=16 N2=39 N3=0 hierarchical_unevictable=0 N0=0 N1=0 N2=0 N3=0 $ cat a/b/memory.numa_stat total=908 N0=552 N1=317 N2=39 N3=0 file=850 N0=549 N1=301 N2=0 N3=0 anon=58 N0=3 N1=16 N2=39 N3=0 unevictable=0 N0=0 N1=0 N2=0 N3=0 hierarchical_total=908 N0=552 N1=317 N2=39 N3=0 hierarchical_file=850 N0=549 N1=301 N2=0 N3=0 hierarchical_anon=58 N0=3 N1=16 N2=39 N3=0 hierarchical_unevictable=0 N0=0 N1=0 N2=0 N3=0 Signed-off-by: NYing Han <yinghan@google.com> Signed-off-by: NGreg Thelen <gthelen@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Greg Thelen 提交于
Refactor mem_control_numa_stat_show() to use a new stats structure for smaller and simpler code. This consolidates nearly identical code. text data bss dec hex filename 8,137,679 1,703,496 1,896,448 11,737,623 b31a17 vmlinux.before 8,136,911 1,703,496 1,896,448 11,736,855 b31717 vmlinux.after Signed-off-by: NGreg Thelen <gthelen@google.com> Signed-off-by: NYing Han <yinghan@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Jianguo Wu 提交于
Use more appropriate NUMA_NO_NODE instead of -1 Signed-off-by: NJianguo Wu <wujianguo@huawei.com> Acked-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Bob Liu 提交于
Khugepaged will scan/free HPAGE_PMD_NR normal pages and replace with a hugepage which is allocated from the node of the first scanned normal page, but this policy is too rough and may end with unexpected result to upper users. The problem is the original page-balancing among all nodes will be broken after hugepaged started. Thinking about the case if the first scanned normal page is allocated from node A, most of other scanned normal pages are allocated from node B or C.. But hugepaged will always allocate hugepage from node A which will cause extra memory pressure on node A which is not the situation before khugepaged started. This patch try to fix this problem by making khugepaged allocate hugepage from the node which have max record of scaned normal pages hit, so that the effect to original page-balancing can be minimized. The other problem is if normal scanned pages are equally allocated from Node A,B and C, after khugepaged started Node A will still suffer extra memory pressure. Andrew Davidoff reported a related issue several days ago. He wanted his application interleaving among all nodes and "numactl --interleave=all ./test" was used to run the testcase, but the result wasn't not as expected. cat /proc/2814/numa_maps: 7f50bd440000 interleave:0-3 anon=51403 dirty=51403 N0=435 N1=435 N2=435 N3=50098 The end result showed that most pages are from Node3 instead of interleave among node0-3 which was unreasonable. This patch also fix this issue by allocating hugepage round robin from all nodes have the same record, after this patch the result was as expected: 7f78399c0000 interleave:0-3 anon=51403 dirty=51403 N0=12723 N1=12723 N2=13235 N3=12722 The simple testcase is like this: int main() { char *p; int i; int j; for (i=0; i < 200; i++) { p = (char *)malloc(1048576); printf("malloc done\n"); if (p == 0) { printf("Out of memory\n"); return 1; } for (j=0; j < 1048576; j++) { p[j] = 'A'; } printf("touched memory\n"); sleep(1); } printf("enter sleep\n"); while(1) { sleep(100); } } [akpm@linux-foundation.org: make last_khugepaged_target_node local to khugepaged_find_target_node()] Reported-by: NAndrew Davidoff <davidoff@qedmf.net> Tested-by: NAndrew Davidoff <davidoff@qedmf.net> Signed-off-by: NBob Liu <bob.liu@oracle.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Bob Liu 提交于
Move alloc_hugepage() to a better place, no need for a seperate #ifndef CONFIG_NUMA Signed-off-by: NBob Liu <bob.liu@oracle.com> Reviewed-by: NYasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Acked-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Andrew Davidoff <davidoff@qedmf.net> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Christian Hesse 提交于
Signed-off-by: NChristian Hesse <mail@eworm.de> Acked-by: NSeth Jennings <sjenning@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Wanpeng Li 提交于
Don't warn twice in __vmalloc_area_node and __vmalloc_node_range if __vmalloc_area_node allocation failure. This patch reverts commit 46c001a2 ("mm/vmalloc.c: emit the failure message before return"). Signed-off-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Reviewed-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Wanpeng Li 提交于
The VM_UNINITIALIZED/VM_UNLIST flag introduced by f5252e00 ("mm: avoid null pointer access in vm_struct via /proc/vmallocinfo") is used to avoid accessing the pages field with unallocated page when show_numa_info() is called. This patch moves the check just before show_numa_info in order that some messages still can be dumped via /proc/vmallocinfo. This patch reverts commit d157a558 ("mm/vmalloc.c: check VM_UNINITIALIZED flag in s_show instead of show_numa_info"); Reviewed-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Wanpeng Li 提交于
There is a race window between vmap_area tear down and show vmap_area information. A B remove_vm_area spin_lock(&vmap_area_lock); va->vm = NULL; va->flags &= ~VM_VM_AREA; spin_unlock(&vmap_area_lock); spin_lock(&vmap_area_lock); if (va->flags & (VM_LAZY_FREE | VM_LAZY_FREEZING)) return 0; if (!(va->flags & VM_VM_AREA)) { seq_printf(m, "0x%pK-0x%pK %7ld vm_map_ram\n", (void *)va->va_start, (void *)va->va_end, va->va_end - va->va_start); return 0; } free_unmap_vmap_area(va); flush_cache_vunmap free_unmap_vmap_area_noflush unmap_vmap_area free_vmap_area_noflush va->flags |= VM_LAZY_FREE The assumption !VM_VM_AREA represents vm_map_ram allocation is introduced by d4033afd ("mm, vmalloc: iterate vmap_area_list, instead of vmlist, in vmallocinfo()"). However, !VM_VM_AREA also represents vmap_area is being tear down in race window mentioned above. This patch fix it by don't dump any information for !VM_VM_AREA case and also remove (VM_LAZY_FREE | VM_LAZY_FREEING) check since they are not possible for !VM_VM_AREA case. Suggested-by: NJoonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Wanpeng Li 提交于
The caller address has already been set in set_vmalloc_vm(), there's no need to set it again in __vmalloc_area_node. Reviewed-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 David Rientjes 提交于
mpol_to_str() should not fail. Currently, it either fails because the string buffer is too small or because a string hasn't been defined for a mempolicy mode. If a new mempolicy mode is introduced and no string is defined for it, just warn and return "unknown". If the buffer is too small, just truncate the string and return, the same behavior as snprintf(). This also fixes a bug where there was no NULL-byte termination when doing *p++ = '=' and *p++ ':' and maxlen has been reached. Signed-off-by: NDavid Rientjes <rientjes@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Chen Gang <gang.chen@asianux.com> Cc: Rik van Riel <riel@redhat.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Jianguo Wu 提交于
Use more appropriate NUMA_NO_NODE instead of -1 in all archs' module_alloc() Signed-off-by: NJianguo Wu <wujianguo@huawei.com> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Naoya Horiguchi 提交于
Chen Gong pointed out that set/unset_migratetype_isolate() was done in different functions in mm/memory-failure.c, which makes the code less readable/maintainable. So this patch does it in soft_offline_page(). With this patch, we get to hold lock_memory_hotplug() longer but it's not a problem because races between memory hotplug and soft offline are very rare. Signed-off-by: NNaoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: NChen, Gong <gong.chen@linux.intel.com> Acked-by: NAndi Kleen <ak@linux.intel.com> Reviewed-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Toshi Kani 提交于
cpu_up() has #ifdef CONFIG_MEMORY_HOTPLUG code blocks, which call mem_online_node() to put its node online if offlined and then call build_all_zonelists() to initialize the zone list. These steps are specific to memory hotplug, and should be managed in mm/memory_hotplug.c. lock_memory_hotplug() should also be held for the whole steps. For this reason, this patch replaces mem_online_node() with try_online_node(), which performs the whole steps with lock_memory_hotplug() held. try_online_node() is named after try_offline_node() as they have similar purpose. There is no functional change in this patch. Signed-off-by: NToshi Kani <toshi.kani@hp.com> Reviewed-by: NYasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Robin Holt 提交于
On large memory machines it can take a few minutes to get through free_all_bootmem(). Currently, when free_all_bootmem() calls __free_pages_memory(), the number of contiguous pages that __free_pages_memory() passes to the buddy allocator is limited to BITS_PER_LONG. BITS_PER_LONG was originally chosen to keep things similar to mm/nobootmem.c. But it is more efficient to limit it to MAX_ORDER. base new change 8TB 202s 172s 30s 16TB 401s 351s 50s That is around 1%-3% improvement on total boot time. This patch was spun off from the boot time rfc Robin and I had been working on. Signed-off-by: NRobin Holt <robin.m.holt@gmail.com> Signed-off-by: NNathan Zimmer <nzimmer@sgi.com> Cc: Robin Holt <robinmholt@linux.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mike Travis <travis@sgi.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Mel Gorman <mgorman@suse.de> Acked-by: NJohannes Weiner <hannes@cmpxchg.org> Reviewed-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Qiang Huang 提交于
Use helper function to check if we need to deal with oom condition. Signed-off-by: NQiang Huang <h.huangqiang@huawei.com> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Xishi Qiu 提交于
Use "pfn_to_nid(pfn)" instead of "page_to_nid(pfn_to_page(pfn))". Signed-off-by: NXishi Qiu <qiuxishi@huawei.com> Acked-by: NYasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Xishi Qiu 提交于
A is_memblock_offlined() return or 1 means memory block is offlined, but is_memblock_offlined_cb() returning 1 means memory block is not offlined, this will confuse somebody, so rename the function. Signed-off-by: NXishi Qiu <qiuxishi@huawei.com> Acked-by: NYasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Xishi Qiu 提交于
Use "if (zone->present_pages)" instead of "if (zone->present_pages)". Simplify the code, no functional change. Signed-off-by: NXishi Qiu <qiuxishi@huawei.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Xishi Qiu 提交于
Use "pgdat_end_pfn()" instead of "pgdat->node_start_pfn + pgdat->node_spanned_pages". Simplify the code, no functional change. Signed-off-by: NXishi Qiu <qiuxishi@huawei.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Xishi Qiu 提交于
Use "pgdat_end_pfn()" instead of "pgdat->node_start_pfn + pgdat->node_spanned_pages". Simplify the code, no functional change. Signed-off-by: NXishi Qiu <qiuxishi@huawei.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Jianguo Wu 提交于
Since commit 13ece886 ("thp: transparent hugepage config choice"), transparent hugepage support is disabled by default, and TRANSPARENT_HUGEPAGE_ALWAYS is configured when TRANSPARENT_HUGEPAGE=y. And since commit d39d33c3 ("thp: enable direct defrag"), defrag is enable for all transparent hugepage page faults by default, not only in MADV_HUGEPAGE regions. Signed-off-by: NJianguo Wu <wujianguo@huawei.com> Reviewed-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Acked-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Naoya Horiguchi 提交于
The callers of free_pgd_range() and hugetlb_free_pgd_range() don't hold page table locks. The comments seems to be obsolete, so let's remove them. Signed-off-by: NNaoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Xishi Qiu 提交于
Use __free_reserved_page() to simplify the code in the others. Signed-off-by: NXishi Qiu <qiuxishi@huawei.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Xishi Qiu 提交于
Use __free_reserved_page() to simplify the code in arch. It used split_page() in consistent_alloc()/__dma_alloc_coherent()/dma_alloc_coherent(), so page->_count == 1, and we can free it safely. __free_reserved_page() ClearPageReserved() init_page_count() // it won't change the value __free_page() Signed-off-by: NXishi Qiu <qiuxishi@huawei.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Jerome Marchand 提交于
Since commit f40d1e42 ("mm: compaction: acquire the zone->lock as late as possible"), isolate_freepages_block() takes the zone->lock itself. The function description however still states that the zone->lock must be held. This patch removes this outdated statement. Signed-off-by: NJerome Marchand <jmarchan@redhat.com> Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Jianguo Wu 提交于
Use more appropriate "if (node == NUMA_NO_NODE)" instead of "if (node < 0)" Signed-off-by: NJianguo Wu <wujianguo@huawei.com> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Joe Perches 提交于
kcalloc returns zeroed memory. There's no need to use this flag. Signed-off-by: NJoe Perches <joe@perches.com> Reviewed-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Andrew Morton 提交于
The callee force_page_cache_readahead() already does this and unlike do_readahead(), force_page_cache_readahead() remembers to check for ->readpages() as well. Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Jan Kara 提交于
Ocfs2 doesn't do data journalling. Thus its ->invalidatepage and ->releasepage functions never get called on buffers that have journal heads attached. So just use standard variants of functions from buffer.c. Signed-off-by: NJan Kara <jack@suse.cz> Cc: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Joe Perches 提交于
This typedef is unnecessary and should just be removed. Signed-off-by: NJoe Perches <joe@perches.com> Cc: Mark Fasheh <mfasheh@suse.com> Acked-by: NJoel Becker <jlbec@evilplan.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Xue jiufei 提交于
When ocfs2_write_cluster_by_desc() failed in ocfs2_write_begin_nolock() because of ENOSPC, it goes to out_quota, freeing data_ac(meta_ac). Then it calls ocfs2_try_to_free_truncate_log() to free space. If enough space freed, it will try to write again. Unfortunately, some error happenes before ocfs2_lock_allocators(), it goes to out and free data_ac(meta_ac) again. Signed-off-by: Njoyce <xuejiufei@huawei.com> Reviewed-by: NJie Liu <jeff.liu@oracle.com> Acked-by: NJoel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Younger Liu 提交于
If the file is not regular or writeable, it should return errno(EPERM). This patch is based on 85a258b7 ("ocfs2: fix error handling in ocfs2_ioctl_move_extents()"). Signed-off-by: NYounger Liu <younger.liu@huawei.com> Signed-off-by: NJie Liu <jeff.liu@oracle.com> Reviewed-by: NDan Carpenter <dan.carpenter@oracle.com> Reviewed-by: NJie Liu <jeff.liu@oracle.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Younger Liu 提交于
If group_bh is not initialized, there is no need to release. This problem does not cause anything wrong, but the patch would make the code more logical. Signed-off-by: NYounger Liu <younger.liu@huawei.com> Cc: Mark Fasheh <mfasheh@suse.com> Acked-by: NJoel Becker <jlbec@evilplan.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-