- 26 7月, 2008 1 次提交
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由 Johannes Weiner 提交于
These got unintentionally moved, put them back as x86 provides its own versions. Signed-off-by: NJohannes Weiner <hannes@saeurebad.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 7月, 2008 6 次提交
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由 Johannes Weiner 提交于
Almost all users of this field need a PFN instead of a physical address, so replace node_boot_start with node_min_pfn. [Lee.Schermerhorn@hp.com: fix spurious BUG_ON() in mark_bootmem()] Signed-off-by: NJohannes Weiner <hannes@saeureba.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NLee Schermerhorn <lee.schermerhorn@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 Johannes Weiner 提交于
alloc_bootmem_core has become quite nasty to read over time. This is a clean rewrite that keeps the semantics. bdata->last_pos has been dropped. bdata->last_success has been renamed to hint_idx and it is now an index relative to the node's range. Since further block searching might start at this index, it is now set to the end of a succeeded allocation rather than its beginning. bdata->last_offset has been renamed to last_end_off to be more clear that it represents the ending address of the last allocation relative to the node. [y-goto@jp.fujitsu.com: fix new alloc_bootmem_core()] Signed-off-by: NJohannes Weiner <hannes@saeurebad.de> Signed-off-by: NYasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Johannes Weiner 提交于
This only reorders functions so that further patches will be easier to read. No code changed. Signed-off-by: NJohannes Weiner <hannes@saeurebad.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andi Kleen 提交于
Straight forward variant of the existing __alloc_bootmem_node, only subsequent patch when allocating giant hugepages at boot -- don't want to panic if we can't allocate as many as the user asked for. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-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 Johannes Weiner 提交于
This function has no external callers, so unexport it. Also fix its naming inconsistency. Signed-off-by: NJohannes Weiner <hannes@saeurebad.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Andy 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 Johannes Weiner 提交于
There are a lot of places that define either a single bootmem descriptor or an array of them. Use only one central array with MAX_NUMNODES items instead. Signed-off-by: NJohannes Weiner <hannes@saeurebad.de> Acked-by: NRalf Baechle <ralf@linux-mips.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Kyle McMartin <kyle@parisc-linux.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: David S. Miller <davem@davemloft.net> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Andy 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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- 08 7月, 2008 1 次提交
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由 Yinghai Lu 提交于
1. add reserve_bootmem_generic for 32bit 2. change len to unsigned long 3. make early_res_to_bootmem to use it Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 22 6月, 2008 1 次提交
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由 Bernhard Walle 提交于
This patch changes the function reserve_bootmem_node() from void to int, returning -ENOMEM if the allocation fails. This fixes a build problem on x86 with CONFIG_KEXEC=y and CONFIG_NEED_MULTIPLE_NODES=y Signed-off-by: NBernhard Walle <bwalle@suse.de> Reported-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 28 4月, 2008 1 次提交
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由 Yasunori Goto 提交于
alloc_bootmem_section() can allocate specified section's area. This is used for usemap to keep same section with pgdat by later patch. Signed-off-by: NYasunori Goto <y-goto@jp.fujitsu.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 2月, 2008 1 次提交
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由 Bernhard Walle 提交于
This patchset adds a flags variable to reserve_bootmem() and uses the BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions between crashkernel area and already used memory. This patch: Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE. If that flag is set, the function returns with -EBUSY if the memory already has been reserved in the past. This is to avoid conflicts. Because that code runs before SMP initialisation, there's no race condition inside reserve_bootmem_core(). [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix powerpc build] Signed-off-by: NBernhard Walle <bwalle@suse.de> Cc: <linux-arch@vger.kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 30 10月, 2007 1 次提交
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由 Linus Torvalds 提交于
This reverts commit 2e1c49db. First off, testing in Fedora has shown it to cause boot failures, bisected down by Martin Ebourne, and reported by Dave Jobes. So the commit will likely be reverted in the 2.6.23 stable kernels. Secondly, in the 2.6.24 model, x86-64 has now grown support for SPARSEMEM_VMEMMAP, which disables the relevant code anyway, so while the bug is not visible any more, it's become invisible due to the code just being irrelevant and no longer enabled on the only architecture that this ever affected. Reported-by: NDave Jones <davej@redhat.com> Tested-by: NMartin Ebourne <fedora@ebourne.me.uk> Cc: Zou Nan hai <nanhai.zou@intel.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Acked-by: NAndy Whitcroft <apw@shadowen.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 01 6月, 2007 1 次提交
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由 Zou Nan hai 提交于
On systems with huge amount of physical memory, VFS cache and memory memmap may eat all available system memory under 4G, then the system may fail to allocate swiotlb bounce buffer. There was a fix for this issue in arch/x86_64/mm/numa.c, but that fix dose not cover sparsemem model. This patch add fix to sparsemem model by first try to allocate memmap above 4G. Signed-off-by: NZou Nan hai <nanhai.zou@intel.com> Acked-by: NSuresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 03 5月, 2007 1 次提交
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由 Ravikiran G Thirumalai 提交于
Enable system hashtable memory to be distributed among nodes on x86_64 NUMA Forcing the kernel to use node interleaved vmalloc instead of bootmem for the system hashtable memory (alloc_large_system_hash) reduces the memory imbalance on node 0 by around 40MB on a 8 node x86_64 NUMA box: Before the following patch, on bootup of a 8 node box: Node 0 MemTotal: 3407488 kB Node 0 MemFree: 3206296 kB Node 0 MemUsed: 201192 kB Node 0 Active: 7012 kB Node 0 Inactive: 512 kB Node 0 Dirty: 0 kB Node 0 Writeback: 0 kB Node 0 FilePages: 1912 kB Node 0 Mapped: 420 kB Node 0 AnonPages: 5612 kB Node 0 PageTables: 468 kB Node 0 NFS_Unstable: 0 kB Node 0 Bounce: 0 kB Node 0 Slab: 5408 kB Node 0 SReclaimable: 644 kB Node 0 SUnreclaim: 4764 kB After the patch (or using hashdist=1 on the kernel command line): Node 0 MemTotal: 3407488 kB Node 0 MemFree: 3247608 kB Node 0 MemUsed: 159880 kB Node 0 Active: 3012 kB Node 0 Inactive: 616 kB Node 0 Dirty: 0 kB Node 0 Writeback: 0 kB Node 0 FilePages: 2424 kB Node 0 Mapped: 380 kB Node 0 AnonPages: 1200 kB Node 0 PageTables: 396 kB Node 0 NFS_Unstable: 0 kB Node 0 Bounce: 0 kB Node 0 Slab: 6304 kB Node 0 SReclaimable: 1596 kB Node 0 SUnreclaim: 4708 kB I guess it is a good idea to keep HASHDIST_DEFAULT "on" for x86_64 NUMA since x86_64 has no dearth of vmalloc space? Or maybe enable hash distribution for all 64bit NUMA arches? The following patch does it only for x86_64. I ran a HPC MPI benchmark -- 'Ansys wingsolid', which takes up quite a bit of memory and uses up tlb entries. This was on a 4 way, 2 socket Tyan AMD box (non vsmp), with 8G total memory (4G pernode). The results with and without hash distribution are: 1. Vanilla - runtime of 1188.000s 2. With hashdist=1 runtime of 1154.000s Oprofile output for the duration of run is: 1. Vanilla: PU: AMD64 processors, speed 2411.16 MHz (estimated) Counted L1_AND_L2_DTLB_MISSES events (L1 and L2 DTLB misses) with a unit mask of 0x00 (No unit mask) count 500 samples % app name symbol name 163054 6.5513 libansys1.so MultiFront::decompose(int, int, Elemset *, int *, int, int, int) 162061 6.5114 libansys3.so blockSaxpy6L_fd 162042 6.5107 libansys3.so blockInnerProduct6L_fd 156286 6.2794 libansys3.so maxb33_ 87879 3.5309 libansys1.so elmatrixmultpcg_ 84857 3.4095 libansys4.so saxpy_pcg 58637 2.3560 libansys4.so .st4560 46612 1.8728 libansys4.so .st4282 43043 1.7294 vmlinux-t copy_user_generic_string 41326 1.6604 libansys3.so blockSaxpyBackSolve6L_fd 41288 1.6589 libansys3.so blockInnerProductBackSolve6L_fd 2. With hashdist=1 CPU: AMD64 processors, speed 2411.13 MHz (estimated) Counted L1_AND_L2_DTLB_MISSES events (L1 and L2 DTLB misses) with a unit mask of 0x00 (No unit mask) count 500 samples % app name symbol name 162993 6.9814 libansys1.so MultiFront::decompose(int, int, Elemset *, int *, int, int, int) 160799 6.8874 libansys3.so blockInnerProduct6L_fd 160459 6.8729 libansys3.so blockSaxpy6L_fd 156018 6.6826 libansys3.so maxb33_ 84700 3.6279 libansys4.so saxpy_pcg 83434 3.5737 libansys1.so elmatrixmultpcg_ 58074 2.4875 libansys4.so .st4560 46000 1.9703 libansys4.so .st4282 41166 1.7632 libansys3.so blockSaxpyBackSolve6L_fd 41033 1.7575 libansys3.so blockInnerProductBackSolve6L_fd 35762 1.5318 libansys1.so inner_product_sub 35591 1.5245 libansys1.so inner_product_sub2 28259 1.2104 libansys4.so addVectors Signed-off-by: NPravin B. Shelar <pravin.shelar@calsoftinc.com> Signed-off-by: NRavikiran Thirumalai <kiran@scalex86.org> Signed-off-by: NShai Fultheim <shai@scalex86.org> Signed-off-by: NAndi Kleen <ak@suse.de> Acked-by: NChristoph Lameter <clameter@engr.sgi.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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- 23 3月, 2007 1 次提交
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由 David Howells 提交于
Fix unannotated variable declarations. Variables that have allocation section annotations (such as __meminitdata) on their definitions must also have them on their declarations as not doing so may affect the addressing mode used by the compiler and may result in a linker error. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NYasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 12月, 2006 1 次提交
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由 Andrew Morton 提交于
It has no users and it's doubtful that we'll need it again. Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 26 9月, 2006 5 次提交
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由 Franck Bui-Huu 提交于
It fixes various coding style issues, specially when spaces are useless. For example '*' go next to the function name. Signed-off-by: NFranck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Franck Bui-Huu 提交于
Signed-off-by: NFranck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Franck Bui-Huu 提交于
Signed-off-by: NFranck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Franck Bui-Huu 提交于
Signed-off-by: NFranck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Franck Bui-Huu 提交于
__init in headers is pretty useless because the compiler doesn't check it, and they get out of sync relatively frequently. So if you see an __init in a header file, it's quite unreliable and you need to check the definition anyway. Signed-off-by: NFranck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 23 9月, 2006 1 次提交
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由 David S. Miller 提交于
The grow algorithm is simple, we grow if: 1) we see a hash chain collision at insert, and 2) we haven't hit the hash size limit (currently 1*1024*1024 slots), and 3) the number of xfrm_state objects is > the current hash mask All of this needs some tweaking. Remove __initdata from "hashdist" so we can use it safely at run time. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 7月, 2006 1 次提交
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由 David Howells 提交于
Fix some FRV arch compile errors, including: (*) Marking nr_kernel_pages as __meminitdata so that references to it end up being properly calculated rather than being assumed to be in the small data section (and thus calculated wrt the GP register). Not doing this causes the linker to emit errors as the offset is too big to fit into the load instruction. (*) Move pm_power_off into an unconditionally compiled .c file as it's now unconditionally accessed. (*) Declare frv_change_cmode() in a header file rather than in a .c file, and declare it asmlinkage. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 23 6月, 2006 1 次提交
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由 Yasunori Goto 提交于
[PATCH] wait_table and zonelist initializing for memory hotadd: change to meminit for build_zonelist Change definitions of some functions and data from __init to __meminit. These functions and data can be used after bootup by this patch to be used for hot-add codes. Signed-off-by: NYasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 10 4月, 2006 1 次提交
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由 Andi Kleen 提交于
The node setup code would try to allocate the node metadata in the node itself, but that fails if there is no memory in there. This can happen with memory hotplug when the hotplug area defines an so far empty node. Now use bootmem to try to allocate the mem_map in other nodes. And if it fails don't panic, but just ignore the node. To make this work I added a new __alloc_bootmem_nopanic function that does what its name implies. TBD should try to use nearby nodes here. Currently we just use any. It's hard to do it better because bootmem doesn't have proper fallback lists yet. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 28 3月, 2006 1 次提交
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由 KAMEZAWA Hiroyuki 提交于
Add a list_head to bootmem_data_t and make bootmems use it. bootmem list is sorted by node_boot_start. Only nodes against which init_bootmem() is called are linked to the list. (i386 allocates bootmem only from one node(0) not from all online nodes.) A summary: 1. for_each_online_pgdat() traverses all *online* nodes. 2. alloc_bootmem() allocates memory only from initialized-for-bootmem nodes. Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 26 3月, 2006 1 次提交
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由 Andi Kleen 提交于
This fixes problems with very large nodes (over 128GB) filling up all of the first 4GB with their mem_map and not leaving enough space for the swiotlb. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 07 1月, 2006 1 次提交
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由 Ravikiran G Thirumalai 提交于
Patch cleans up the alloc_bootmem fix for swiotlb. Patch removes alloc_bootmem_*_limit api and fixes alloc_boot_*low api to do the right thing -- allocate from low32 memory. Signed-off-by: NRavikiran Thirumalai <kiran@scalex86.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 20 10月, 2005 1 次提交
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由 Yasunori Goto 提交于
This introduces a limit parameter to the core bootmem allocator; The new parameter indicates that physical memory allocated by the bootmem allocator should be within the requested limit. We also introduce alloc_bootmem_low_pages_limit, alloc_bootmem_node_limit, alloc_bootmem_low_pages_node_limit apis, but alloc_bootmem_low_pages_limit is the only api used for swiotlb. The existing alloc_bootmem_low_pages() api could instead have been changed and made to pass right limit to the core allocator. But that would make the patch more intrusive for 2.6.14, as other arches use alloc_bootmem_low_pages(). We may be done that post 2.6.14 as a cleanup. With this, swiotlb gets memory within 4G for both x86_64 and ia64 arches. Signed-off-by: NYasunori Goto <y-goto@jp.fujitsu.com> Cc: Ravikiran G Thirumalai <kiran@scalex86.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 26 6月, 2005 1 次提交
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由 Vivek Goyal 提交于
This patch retrieves the max_pfn being used by previous kernel and stores it in a safe location (saved_max_pfn) before it is overwritten due to user defined memory map. This pfn is used to make sure that user does not try to read the physical memory beyond saved_max_pfn. Signed-off-by: NVivek Goyal <vgoyal@in.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 24 6月, 2005 1 次提交
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由 Dave Hansen 提交于
Introduce a simple allocator for the NUMA remap space. This space is very scarce, used for structures which are best allocated node local. This mechanism is also used on non-NUMA ia64 systems with a vmem_map to keep the pgdat->node_mem_map initialized in a consistent place for all architectures. Issues: o alloc_remap takes a node_id where we might expect a pgdat which was intended to allow us to allocate the pgdat's using this mechanism; which we do not yet do. Could have alloc_remap_node() and alloc_remap_nid() for this purpose. Signed-off-by: NAndy Whitcroft <apw@shadowen.org> Signed-off-by: NDave Hansen <haveblue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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