- 17 7月, 2007 40 次提交
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由 Sam Ravnborg 提交于
Fix the following section mismatch warnings: WARNING: arch/alpha/kernel/built-in.o(.text+0x7c78): Section mismatch: reference to .init.text:init_rtc_irq (between 'common_init_rtc' and 'timer_interrupt') WARNING: arch/alpha/kernel/built-in.o(.text+0x7c7c): Section mismatch: reference to .init.text:init_rtc_irq (between 'common_init_rtc' and 'timer_interrupt') WARNING: arch/alpha/kernel/built-in.o(.data+0x2c30): Section mismatch: reference to .init.text:srm_console_setup (between 'srmcons' and 'tsunami_pci_ops') In all three cases functions marked __init was called outside __init context. So the fix was to just drop the __init attribute. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Cc: Meelis Roos <mroos@linux.ee> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yoshinori Sato 提交于
Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yoshinori Sato 提交于
arch/h8300/kernel/ints.c is unused. Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yoshinori Sato 提交于
- Add missing files - Add Makefile target - Change image base - Style fix Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alan Cox 提交于
Add the needed constants and defines to activate the new tty code on this platform Signed-off-by: NAlan Cox <alan@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Greg Ungerer 提交于
Remove cache management cruft. This code is dead, all the cache manangement functions for the ColdFire exist in the header file include/asm-m68knommu/cacheflush.h. Signed-off-by: NGreg Ungerer <gerg@uclinux.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Greg Ungerer 提交于
Clean out cruft. . remove include files not needed . remove not used CAT_ROMARRAY code . remove generic machine pointers not used . remove unused functions . fix email address in copyrights Signed-off-by: NGreg Ungerer <gerg@uclinux.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Greg Ungerer 提交于
Use THREAD_SIZE instead of a hard constant. Signed-off-by: NPhilippe De Muyter <phdm@macqel.be> Signed-off-by: NGreg Ungerer <gerg@uclinux.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Greg Ungerer 提交于
Be consistent with VM mmap, implement expand_stack(). We can't actually do anything other than return an error in the no MMU case though. Signed-off-by: NGreg Ungerer <gerg@uclinux.org> Cc: David Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Howells 提交于
Remove some dead chunks of code that are bounded by preprocessor conditionals controlled by apparently no-longer available config options. These are: CONFIG_BLK_DEV_BLKMEM CONFIG_CHR_DEV_FLASH CONFIG_BLK_DEV_FLASH CONFIG_CONSOLE [Found by Robert P. J. Day <rpjday@mindspring.com>] Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Howells 提交于
Be (self-)consistent and use CONFIG_GDB_CONSOLE everywhere rather than using CONFIG_GDBSTUB_CONSOLE in some places and not others. This is also then consistent with other archs. Also remove the gdbstub console device() op which doesn't seem to be necessary now (especially as it doesn't compile). [Found by Robert P. J. Day <rpjday@mindspring.com>] Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Howells 提交于
Connect up new system calls. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Miklos Szeredi 提交于
This is a straightforward split of do_mmap_pgoff() into two functions: - do_mmap_pgoff() checks the parameters, and calculates the vma flags. Then it calls - mmap_region(), which does the actual mapping Signed-off-by: NMiklos Szeredi <mszeredi@suse.cz> Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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The do_loop_readv_writev implementation of readv breaks out of the loop as soon as a single read request didn't fill it's buffer: if (nr != len) break; The generic_file_aio_read version doesn't. So if it hits EOF before the end of the list of buffers, it will try again on the next buffer. If the file was extended in the mean time, this will produce a bad result. Signed-off-by: NNeil Brown <neilb@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 Herbert van den Bergh 提交于
Fix a bug in mm/mlock.c on 32-bit architectures that prevents a user from locking more than 4GB of shared memory, or allocating more than 4GB of shared memory in hugepages, when rlim[RLIMIT_MEMLOCK] is set to RLIM_INFINITY. Signed-off-by: NHerbert van den Bergh <herbert.van.den.bergh@oracle.com> Acked-by: NChris Mason <chris.mason@oracle.com> 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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由 Paul Mundt 提交于
Currently slob is disabled if we're using sparsemem, due to an earlier patch from Goto-san. Slob and static sparsemem work without any trouble as it is, and the only hiccup is a missing slab_is_available() in the case of sparsemem extreme. With this, we're rid of the last set of restrictions for slob usage. Signed-off-by: NPaul Mundt <lethal@linux-sh.org> Acked-by: NPekka Enberg <penberg@cs.helsinki.fi> Acked-by: NMatt Mackall <mpm@selenic.com> 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 Hugh Dickins 提交于
mspec_mmap was setting VM_LOCKED (without adjusting locked_vm): don't do that, it serves no purpose in 2.6, other than to mess up the locked_vm accounting - mspec's pages won't get reclaimed anyway. Thanks to Dmitry Monakhov for raising the issue. Signed-off-by: NHugh Dickins <hugh@veritas.com> Acked-by: NJes Sorensen <jes@sgi.com> Cc: Dmitry Monakhov <dmonakhov@sw.ru> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Dan Aloni 提交于
Signed-off-by: NDan Aloni <da-x@monatomic.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Paul Mundt 提交于
This adds preliminary NUMA support to SLOB, primarily aimed at systems with small nodes (tested all the way down to a 128kB SRAM block), whether asymmetric or otherwise. We follow the same conventions as SLAB/SLUB, preferring current node placement for new pages, or with explicit placement, if a node has been specified. Presently on UP NUMA this has the side-effect of preferring node#0 allocations (since numa_node_id() == 0, though this could be reworked if we could hand off a pfn to determine node placement), so single-CPU NUMA systems will want to place smaller nodes further out in terms of node id. Once a page has been bound to a node (via explicit node id typing), we only do block allocations from partial free pages that have a matching node id in the page flags. The current implementation does have some scalability problems, in that all partial free pages are tracked in the global freelist (with contention due to the single spinlock). However, these are things that are being reworked for SMP scalability first, while things like per-node freelists can easily be built on top of this sort of functionality once it's been added. More background can be found in: http://marc.info/?l=linux-mm&m=118117916022379&w=2 http://marc.info/?l=linux-mm&m=118170446306199&w=2 http://marc.info/?l=linux-mm&m=118187859420048&w=2 and subsequent threads. Acked-by: NChristoph Lameter <clameter@sgi.com> Acked-by: NMatt Mackall <mpm@selenic.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org> Acked-by: NNick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jason Baron 提交于
In the new madvise_need_mmap_write() call we can avoid an extra case statement and function call as follows. Signed-off-by: NJason Baron <jbaron@redhat.com> Cc: Nishanth Aravamudan <nacc@us.ibm.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Adrian Bunk 提交于
start_cpu_timer() should be __cpuinit (which also matches what it's callers are). __devinit didn't cause problems, it simply wasted a few bytes of memory for the common CONFIG_HOTPLUG_CPU=n case. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Paul Mundt 提交于
Currently zone_spanned_pages_in_node() and zone_absent_pages_in_node() are non-static for ARCH_POPULATES_NODE_MAP and static otherwise. However, only the non-static versions are __meminit annotated, despite only being called from __meminit functions in either case. zone_init_free_lists() is currently non-static and not __meminit annotated either, despite only being called once in the entire tree by init_currently_empty_zone(), which too is __meminit. So make it static and properly annotated. Signed-off-by: NPaul Mundt <lethal@linux-sh.org> 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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由 Jan Beulich 提交于
This symbol got orphaned quite a while ago. Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jan Beulich 提交于
Kill pte_rdprotect(), pte_exprotect(), pte_mkread(), pte_mkexec(), pte_read(), pte_exec(), and pte_user() except where arch-specific code is making use of them. Signed-off-by: NJan Beulich <jbeulich@novell.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jan Beulich 提交于
.. which modpost started warning about. Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Paul Mundt 提交于
Enabling debugging fails to build due to the nodemask variable in do_mbind() having changed names, and then oopses on boot due to the assumption that the nodemask can be dereferenced -- which doesn't work out so well when the policy is changed to MPOL_DEFAULT with a NULL nodemask by numa_default_policy(). This fixes it up, and switches from PDprintk() to pr_debug() while we're at it. Signed-off-by: NPaul Mundt <lethal@linux-sh.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 Ethan Solomita 提交于
get_user_pages() can try to allocate a nearly unlimited amount of memory on behalf of a user process, even if that process has been OOM killed. The OOM kill occurs upon return to user space via a SIGKILL, but get_user_pages() will try allocate all its memory before returning. Change get_user_pages() to check for TIF_MEMDIE, and if set then return immediately. Signed-off-by: NEthan Solomita <solo@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Paul Mundt 提交于
This converts the default system init memory policy to use a dynamically created node map instead of defaulting to all online nodes. Nodes of a certain size (>= 16MB) are judged to be suitable for interleave, and are added to the map. If all nodes are smaller in size, the largest one is automatically selected. Without this, tiny nodes find themselves out of memory before we even make it to userspace. Systems with large nodes will notice no change. Only the system init policy is effected by this change, the regular MPOL_DEFAULT policy is still switched to later on in the boot process as normal. Signed-off-by: NPaul Mundt <lethal@linux-sh.org> Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Lee 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 Christoph Lameter 提交于
Add a new configuration variable CONFIG_SLUB_DEBUG_ON If set then the kernel will be booted by default with slab debugging switched on. Similar to CONFIG_SLAB_DEBUG. By default slab debugging is available but must be enabled by specifying "slub_debug" as a kernel parameter. Also add support to switch off slab debugging for a kernel that was built with CONFIG_SLUB_DEBUG_ON. This works by specifying slub_debug=- as a kernel parameter. Dave Jones wanted this feature. http://marc.info/?l=linux-kernel&m=118072189913045&w=2 [akpm@linux-foundation.org: clean up switch statement] 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 Andrew Morton 提交于
invalidate_mapping_pages() can sometimes take a long time (millions of pages to free). Long enough for the softlockup detector to trigger. We used to have a cond_resched() in there but I took it out because the drop_caches code calls invalidate_mapping_pages() under inode_lock. The patch adds a nasty flag and puts the cond_resched() back. Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nick Piggin 提交于
Add a bugcheck for Andrea's pagefault vs invalidate race. This is triggerable for both linear and nonlinear pages with a userspace test harness (using direct IO and truncate, respectively). 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 Joe Jin 提交于
That static `nid' index needs locking. Without it we can end up calling alloc_pages_node() with an illegal node ID and the kernel crashes. Acked-by: Ngurudas pai <gurudas.pai@oracle.com> 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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由 Anderson Briglia 提交于
Fix the shrink_list name on some files under mm/ directory. Signed-off-by: NAnderson Briglia <anderson.briglia@indt.org.br> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nick Piggin 提交于
Remove the core slob allocator's minimum alignment restrictions, and instead introduce the alignment restrictions at the slab API layer. This lets us heed the ARCH_KMALLOC/SLAB_MINALIGN directives, and also use __alignof__ (unsigned long) for the default alignment (which should allow relaxed alignment architectures to take better advantage of SLOB's small minimum alignment). Signed-off-by: NNick Piggin <npiggin@suse.de> Acked-by: NMatt Mackall <mpm@selenic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nick Piggin 提交于
Remove the bigblock lists in favour of using compound pages and going directly to the page allocator. Allocation size is stored in page->private, which also makes ksize more accurate than it previously was. Saves ~.5K of code, and 12-24 bytes overhead per >= PAGE_SIZE allocation. Signed-off-by: NNick Piggin <npiggin@suse.de> Acked-by: NMatt Mackall <mpm@selenic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nick Piggin 提交于
Improve slob by turning the freelist into a list of pages using struct page fields, then each page has a singly linked freelist of slob blocks via a pointer in the struct page. - The first benefit is that the slob freelists can be indexed by a smaller type (2 bytes, if the PAGE_SIZE is reasonable). - Next is that freeing is much quicker because it does not have to traverse the entire freelist. Allocation can be slightly faster too, because we can skip almost-full freelist pages completely. - Slob pages are then freed immediately when they become empty, rather than having a periodic timer try to free them. This gives efficiency and memory consumption improvement. Then, we don't encode seperate size and next fields into each slob block, rather we use the sign bit to distinguish between "size" or "next". Then size 1 blocks contain a "next" offset, and others contain the "size" in the first unit and "next" in the second unit. - This allows minimum slob allocation alignment to go from 8 bytes to 2 bytes on 32-bit and 12 bytes to 2 bytes on 64-bit. In practice, it is best to align them to word size, however some architectures (eg. cris) could gain space savings from turning off this extra alignment. Then, make kmalloc use its own slob_block at the front of the allocation in order to encode allocation size, rather than rely on not overwriting slob's existing header block. - This reduces kmalloc allocation overhead similarly to alignment reductions. - Decouples kmalloc layer from the slob allocator. Then, add a page flag specific to slob pages. - This means kfree of a page aligned slob block doesn't have to traverse the bigblock list. I would get benchmarks, but my test box's network doesn't come up with slob before this patch. I think something is timing out. Anyway, things are faster after the patch. Code size goes up about 1K, however dynamic memory usage _should_ be lower even on relatively small memory systems. Future todo item is to restore the cyclic free list search, rather than to always begin at the start. Signed-off-by: NNick Piggin <npiggin@suse.de> Acked-by: NMatt Mackall <mpm@selenic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robert P. J. Day 提交于
Given that there is no remaining usage of the deprecated kmem_cache_t typedef anywhere in the tree, remove that typedef. Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com> Acked-by: NPekka Enberg <penberg@cs.helsinki.fi> Acked-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 Eric Dumazet 提交于
alloc_large_system_hash() is called at boot time to allocate space for several large hash tables. Lately, TCP hash table was changed and its bucketsize is not a power-of-two anymore. On most setups, alloc_large_system_hash() allocates one big page (order > 0) with __get_free_pages(GFP_ATOMIC, order). This single high_order page has a power-of-two size, bigger than the needed size. We can free all pages that wont be used by the hash table. On a 1GB i386 machine, this patch saves 128 KB of LOWMEM memory. TCP established hash table entries: 32768 (order: 6, 393216 bytes) Signed-off-by: NEric Dumazet <dada1@cosmosbay.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Pavel Emelianov 提交于
This entry prints a header in .start callback. This is OK, but the more elegant solution would be to move this into the .show callback and use seq_list_start_head() in .start one. I have left it as is in order to make the patch just switch to new API and noting more. [adobriyan@sw.ru: Wrong pointer was used as kmem_cache pointer] Signed-off-by: NPavel Emelianov <xemul@openvz.org> Cc: Christoph Lameter <clameter@sgi.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NAlexey Dobriyan <adobriyan@sw.ru> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rolf Eike Beer 提交于
Replace a hand coded version of DIV_ROUND_UP(). Signed-off-by: NRolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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