Linux kernel stable tree https://git.rulkc.org/pub/scm/linux/kernel/git/stable/linux.git/atom?h=linux-3.5.y 2012-05-25T04:34:34+00:00 2012-05-25T04:34:34+00:00 Kautuk Consul consul.kautuk@gmail.com 2012-03-20T13:21:40+00:00 urn:sha1:f397c077e114df07bd2b94a16681a04be8d59dff Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99 (mm: retry page fault when blocking on disk transfer) and commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb (x86,mm: make pagefault killable) The above commits introduced changes into the x86 pagefault handler for making the page fault handler retryable as well as killable. These changes reduce the mmap_sem hold time, which is crucial during OOM killer invocation. Port these changes to microblaze. Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com> 2012-03-28T22:58:21+00:00 Linus Torvalds torvalds@linux-foundation.org 2012-03-28T22:58:21+00:00 urn:sha1:0195c00244dc2e9f522475868fa278c473ba7339 Pull "Disintegrate and delete asm/system.h" from David Howells: "Here are a bunch of patches to disintegrate asm/system.h into a set of separate bits to relieve the problem of circular inclusion dependencies. I've built all the working defconfigs from all the arches that I can and made sure that they don't break. The reason for these patches is that I recently encountered a circular dependency problem that came about when I produced some patches to optimise get_order() by rewriting it to use ilog2(). This uses bitops - and on the SH arch asm/bitops.h drags in asm-generic/get_order.h by a circuituous route involving asm/system.h. The main difficulty seems to be asm/system.h. It holds a number of low level bits with no/few dependencies that are commonly used (eg. memory barriers) and a number of bits with more dependencies that aren't used in many places (eg. switch_to()). These patches break asm/system.h up into the following core pieces: (1) asm/barrier.h Move memory barriers here. This already done for MIPS and Alpha. (2) asm/switch_to.h Move switch_to() and related stuff here. (3) asm/exec.h Move arch_align_stack() here. Other process execution related bits could perhaps go here from asm/processor.h. (4) asm/cmpxchg.h Move xchg() and cmpxchg() here as they're full word atomic ops and frequently used by atomic_xchg() and atomic_cmpxchg(). (5) asm/bug.h Move die() and related bits. (6) asm/auxvec.h Move AT_VECTOR_SIZE_ARCH here. Other arch headers are created as needed on a per-arch basis." Fixed up some conflicts from other header file cleanups and moving code around that has happened in the meantime, so David's testing is somewhat weakened by that. We'll find out anything that got broken and fix it.. * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits) Delete all instances of asm/system.h Remove all #inclusions of asm/system.h Add #includes needed to permit the removal of asm/system.h Move all declarations of free_initmem() to linux/mm.h Disintegrate asm/system.h for OpenRISC Split arch_align_stack() out from asm-generic/system.h Split the switch_to() wrapper out of asm-generic/system.h Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h Create asm-generic/barrier.h Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h Disintegrate asm/system.h for Xtensa Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] Disintegrate asm/system.h for Tile Disintegrate asm/system.h for Sparc Disintegrate asm/system.h for SH Disintegrate asm/system.h for Score Disintegrate asm/system.h for S390 Disintegrate asm/system.h for PowerPC Disintegrate asm/system.h for PA-RISC Disintegrate asm/system.h for MN10300 ... 2012-03-28T17:30:02+00:00 David Howells dhowells@redhat.com 2012-03-28T17:30:02+00:00 urn:sha1:c40d04df152a1111c5bbcb632278394dabd2b73d Disintegrate asm/system.h for Microblaze. Not compiled. Signed-off-by: David Howells <dhowells@redhat.com> cc: microblaze-uclinux@itee.uq.edu.au 2012-03-23T08:28:18+00:00 Michal Simek monstr@monstr.eu 2010-02-08T15:41:38+00:00 urn:sha1:95b0f9ea66661681f6ae081ea28416744d622c07 Systems with small amount of memory need to be handled differently. Linux can't allocate the whole 32MB with two TLBs because then there is no MMU protection. Signed-off-by: Michal Simek <monstr@monstr.eu> 2012-03-23T08:28:14+00:00 Michal Simek monstr@monstr.eu 2011-12-22T11:33:24+00:00 urn:sha1:7c0d26150781cbd8a522259c9dea9e7ef23df8e3 Fix how many pages are allocated in mapin_ram. It is lowmem_size not setup CONFIG_LOWMEM_SIZE because it is the same for all systems. Which means that wrong pages are allocated if memory size is smaller than CONFIG_LOWMEM_SIZE. It has dramatic impact on bootup time. On sp605 MMU full hw design is 7s. Signed-off-by: Michal Simek <monstr@monstr.eu> 2012-03-23T08:28:13+00:00 Michal Simek monstr@monstr.eu 2011-12-15T14:02:37+00:00 urn:sha1:2f2f371f8907d169650f594850ca6096e2f73b77 The first highmem implementation. Signed-off-by: Michal Simek <monstr@monstr.eu> 2012-03-23T08:28:13+00:00 Michal Simek monstr@monstr.eu 2011-12-15T14:47:16+00:00 urn:sha1:baab8a828d2d6b5b073c192ebe777514bbf3c831 Register lowmem active regions. Signed-off-by: Michal Simek <monstr@monstr.eu> 2012-03-23T08:28:12+00:00 Michal Simek monstr@monstr.eu 2011-12-19T12:47:03+00:00 urn:sha1:832997990ab912ab8ed4ade08cb6ac5f471efa1e Microblaze MMU is similar to ppc that's why ppc layout was reused. Signed-off-by: Michal Simek <monstr@monstr.eu> 2012-03-23T08:28:11+00:00 Michal Simek monstr@monstr.eu 2011-12-15T13:33:32+00:00 urn:sha1:419387612c03fce2ca6d5a3d6aac3dae42069264 Fixmap will be used for highmem support. Signed-off-by: Michal Simek <monstr@monstr.eu> 2012-03-23T08:28:10+00:00 Michal Simek monstr@monstr.eu 2011-12-19T12:46:35+00:00 urn:sha1:83a92529c1789f86481190743a6bb09f31ec39a8 Use CONFIG_LOWMEM_SIZE if system has larger ram size. For system with larger ram size, enable HIGMEM support. Also setup limitation for memblock and use memblock allocation in lowmem region. Signed-off-by: Michal Simek <monstr@monstr.eu>