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8ab22b9 Hisashi Hifumi 28 July 2008, 22:46:36 UTC vfs: pagecache usage optimization for pagesize!=blocksize When we read some part of a file through pagecache, if there is a pagecache of corresponding index but this page is not uptodate, read IO is issued and this page will be uptodate. I think this is good for pagesize == blocksize environment but there is room for improvement on pagesize != blocksize environment. Because in this case a page can have multiple buffers and even if a page is not uptodate, some buffers can be uptodate. So I suggest that when all buffers which correspond to a part of a file that we want to read are uptodate, use this pagecache and copy data from this pagecache to user buffer even if a page is not uptodate. This can reduce read IO and improve system throughput. I wrote a benchmark program and got result number with this program. This benchmark do: 1: mount and open a test file. 2: create a 512MB file. 3: close a file and umount. 4: mount and again open a test file. 5: pwrite randomly 300000 times on a test file. offset is aligned by IO size(1024bytes). 6: measure time of preading randomly 100000 times on a test file. The result was: 2.6.26 330 sec 2.6.26-patched 226 sec Arch:i386 Filesystem:ext3 Blocksize:1024 bytes Memory: 1GB On ext3/4, a file is written through buffer/block. So random read/write mixed workloads or random read after random write workloads are optimized with this patch under pagesize != blocksize environment. This test result showed this. The benchmark program is as follows: #include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> #include <time.h> #include <stdlib.h> #include <string.h> #include <sys/mount.h> #define LEN 1024 #define LOOP 1024*512 /* 512MB */ main(void) { unsigned long i, offset, filesize; int fd; char buf[LEN]; time_t t1, t2; if (mount("/dev/sda1", "/root/test1/", "ext3", 0, 0) < 0) { perror("cannot mount\n"); exit(1); } memset(buf, 0, LEN); fd = open("/root/test1/testfile", O_CREAT|O_RDWR|O_TRUNC); if (fd < 0) { perror("cannot open file\n"); exit(1); } for (i = 0; i < LOOP; i++) write(fd, buf, LEN); close(fd); if (umount("/root/test1/") < 0) { perror("cannot umount\n"); exit(1); } if (mount("/dev/sda1", "/root/test1/", "ext3", 0, 0) < 0) { perror("cannot mount\n"); exit(1); } fd = open("/root/test1/testfile", O_RDWR); if (fd < 0) { perror("cannot open file\n"); exit(1); } filesize = LEN * LOOP; for (i = 0; i < 300000; i++){ offset = (random() % filesize) & (~(LEN - 1)); pwrite(fd, buf, LEN, offset); } printf("start test\n"); time(&t1); for (i = 0; i < 100000; i++){ offset = (random() % filesize) & (~(LEN - 1)); pread(fd, buf, LEN, offset); } time(&t2); printf("%ld sec\n", t2-t1); close(fd); if (umount("/root/test1/") < 0) { perror("cannot umount\n"); exit(1); } } Signed-off-by: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Christoph Hellwig <hch@infradead.org> Cc: Jan Kara <jack@ucw.cz> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:21 UTC
d84a52f Simon Horman 28 July 2008, 22:46:34 UTC kdump: update kdump documentation as kexec-tools-resting has been renamed kexec-tools Signed-off-by: Simon Horman <horms@verge.net.au> Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:21 UTC
cb1d0a7 Ben Dooks 28 July 2008, 22:46:33 UTC spi_s3c24xx: really assign busnum The original "Pass the bus number we expect the S3C24XX SPI driver to attach to via the platform data." [1] patch was mis-sent, and missed two important parts of the diff, which was to actually set the bus_num field and add the relevant field to the platform data. The previous commit 50f426b55d919dd017af35bb6a08753d1f262920 promised to add a bus_num field, but failed to include the two hunks that added this field to include/asm-arm/arch-s3c2410/spi.h and then pass it to the spi core when creating the new master field in drivers/spi/spi_s3c24xx.c. [1] git commit 50f426b55d919dd017af35bb6a08753d1f262920 Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:21 UTC
9a7867e Luotao Fu 28 July 2008, 22:46:32 UTC mpc52xx_psc_spi: fix block transfer The block transfer routine in the mpc52xx psc spi driver misinterpret the datasheet. According to the processor datasheet the chipselect is held as long as the EOF is not written. Theoretically blocks of any sizes can be transferred in this way. The old routine however writes an EOF after every word, which has the size of size_of_word. This makes the transfer slow. Also fixed some duplicate code. Signed-off-by: Luotao Fu <l.fu@pengutronix.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:21 UTC
78a34ae Adrian Bunk 28 July 2008, 22:46:30 UTC mm/hugetlb.c must #include <asm/io.h> This patch fixes the following build error on sh caused by commit aa888a74977a8f2120ae9332376e179c39a6b07d ("hugetlb: support larger than MAX_ORDER"): mm/hugetlb.c: In function 'alloc_bootmem_huge_page': mm/hugetlb.c:958: error: implicit declaration of function 'virt_to_phys' Signed-off-by: Adrian Bunk <bunk@kernel.org> 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> 28 July 2008, 23:30:21 UTC
cddb8a5 Andrea Arcangeli 28 July 2008, 22:46:29 UTC mmu-notifiers: core With KVM/GFP/XPMEM there isn't just the primary CPU MMU pointing to pages. There are secondary MMUs (with secondary sptes and secondary tlbs) too. sptes in the kvm case are shadow pagetables, but when I say spte in mmu-notifier context, I mean "secondary pte". In GRU case there's no actual secondary pte and there's only a secondary tlb because the GRU secondary MMU has no knowledge about sptes and every secondary tlb miss event in the MMU always generates a page fault that has to be resolved by the CPU (this is not the case of KVM where the a secondary tlb miss will walk sptes in hardware and it will refill the secondary tlb transparently to software if the corresponding spte is present). The same way zap_page_range has to invalidate the pte before freeing the page, the spte (and secondary tlb) must also be invalidated before any page is freed and reused. Currently we take a page_count pin on every page mapped by sptes, but that means the pages can't be swapped whenever they're mapped by any spte because they're part of the guest working set. Furthermore a spte unmap event can immediately lead to a page to be freed when the pin is released (so requiring the same complex and relatively slow tlb_gather smp safe logic we have in zap_page_range and that can be avoided completely if the spte unmap event doesn't require an unpin of the page previously mapped in the secondary MMU). The mmu notifiers allow kvm/GRU/XPMEM to attach to the tsk->mm and know when the VM is swapping or freeing or doing anything on the primary MMU so that the secondary MMU code can drop sptes before the pages are freed, avoiding all page pinning and allowing 100% reliable swapping of guest physical address space. Furthermore it avoids the code that teardown the mappings of the secondary MMU, to implement a logic like tlb_gather in zap_page_range that would require many IPI to flush other cpu tlbs, for each fixed number of spte unmapped. To make an example: if what happens on the primary MMU is a protection downgrade (from writeable to wrprotect) the secondary MMU mappings will be invalidated, and the next secondary-mmu-page-fault will call get_user_pages and trigger a do_wp_page through get_user_pages if it called get_user_pages with write=1, and it'll re-establishing an updated spte or secondary-tlb-mapping on the copied page. Or it will setup a readonly spte or readonly tlb mapping if it's a guest-read, if it calls get_user_pages with write=0. This is just an example. This allows to map any page pointed by any pte (and in turn visible in the primary CPU MMU), into a secondary MMU (be it a pure tlb like GRU, or an full MMU with both sptes and secondary-tlb like the shadow-pagetable layer with kvm), or a remote DMA in software like XPMEM (hence needing of schedule in XPMEM code to send the invalidate to the remote node, while no need to schedule in kvm/gru as it's an immediate event like invalidating primary-mmu pte). At least for KVM without this patch it's impossible to swap guests reliably. And having this feature and removing the page pin allows several other optimizations that simplify life considerably. Dependencies: 1) mm_take_all_locks() to register the mmu notifier when the whole VM isn't doing anything with "mm". This allows mmu notifier users to keep track if the VM is in the middle of the invalidate_range_begin/end critical section with an atomic counter incraese in range_begin and decreased in range_end. No secondary MMU page fault is allowed to map any spte or secondary tlb reference, while the VM is in the middle of range_begin/end as any page returned by get_user_pages in that critical section could later immediately be freed without any further ->invalidate_page notification (invalidate_range_begin/end works on ranges and ->invalidate_page isn't called immediately before freeing the page). To stop all page freeing and pagetable overwrites the mmap_sem must be taken in write mode and all other anon_vma/i_mmap locks must be taken too. 2) It'd be a waste to add branches in the VM if nobody could possibly run KVM/GRU/XPMEM on the kernel, so mmu notifiers will only enabled if CONFIG_KVM=m/y. In the current kernel kvm won't yet take advantage of mmu notifiers, but this already allows to compile a KVM external module against a kernel with mmu notifiers enabled and from the next pull from kvm.git we'll start using them. And GRU/XPMEM will also be able to continue the development by enabling KVM=m in their config, until they submit all GRU/XPMEM GPLv2 code to the mainline kernel. Then they can also enable MMU_NOTIFIERS in the same way KVM does it (even if KVM=n). This guarantees nobody selects MMU_NOTIFIER=y if KVM and GRU and XPMEM are all =n. The mmu_notifier_register call can fail because mm_take_all_locks may be interrupted by a signal and return -EINTR. Because mmu_notifier_reigster is used when a driver startup, a failure can be gracefully handled. Here an example of the change applied to kvm to register the mmu notifiers. Usually when a driver startups other allocations are required anyway and -ENOMEM failure paths exists already. struct kvm *kvm_arch_create_vm(void) { struct kvm *kvm = kzalloc(sizeof(struct kvm), GFP_KERNEL); + int err; if (!kvm) return ERR_PTR(-ENOMEM); INIT_LIST_HEAD(&kvm->arch.active_mmu_pages); + kvm->arch.mmu_notifier.ops = &kvm_mmu_notifier_ops; + err = mmu_notifier_register(&kvm->arch.mmu_notifier, current->mm); + if (err) { + kfree(kvm); + return ERR_PTR(err); + } + return kvm; } mmu_notifier_unregister returns void and it's reliable. The patch also adds a few needed but missing includes that would prevent kernel to compile after these changes on non-x86 archs (x86 didn't need them by luck). [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix mm/filemap_xip.c build] [akpm@linux-foundation.org: fix mm/mmu_notifier.c build] Signed-off-by: Andrea Arcangeli <andrea@qumranet.com> Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Cc: Jack Steiner <steiner@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Kanoj Sarcar <kanojsarcar@yahoo.com> Cc: Roland Dreier <rdreier@cisco.com> Cc: Steve Wise <swise@opengridcomputing.com> Cc: Avi Kivity <avi@qumranet.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Anthony Liguori <aliguori@us.ibm.com> Cc: Chris Wright <chrisw@redhat.com> Cc: Marcelo Tosatti <marcelo@kvack.org> Cc: Eric Dumazet <dada1@cosmosbay.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Izik Eidus <izike@qumranet.com> Cc: Anthony Liguori <aliguori@us.ibm.com> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:21 UTC
7906d00 Andrea Arcangeli 28 July 2008, 22:46:26 UTC mmu-notifiers: add mm_take_all_locks() operation mm_take_all_locks holds off reclaim from an entire mm_struct. This allows mmu notifiers to register into the mm at any time with the guarantee that no mmu operation is in progress on the mm. This operation locks against the VM for all pte/vma/mm related operations that could ever happen on a certain mm. This includes vmtruncate, try_to_unmap, and all page faults. The caller must take the mmap_sem in write mode before calling mm_take_all_locks(). The caller isn't allowed to release the mmap_sem until mm_drop_all_locks() returns. mmap_sem in write mode is required in order to block all operations that could modify pagetables and free pages without need of altering the vma layout (for example populate_range() with nonlinear vmas). It's also needed in write mode to avoid new anon_vmas to be associated with existing vmas. A single task can't take more than one mm_take_all_locks() in a row or it would deadlock. mm_take_all_locks() and mm_drop_all_locks are expensive operations that may have to take thousand of locks. mm_take_all_locks() can fail if it's interrupted by signals. When mmu_notifier_register returns, we must be sure that the driver is notified if some task is in the middle of a vmtruncate for the 'mm' where the mmu notifier was registered (mmu_notifier_invalidate_range_start/end is run around the vmtruncation but mmu_notifier_register can run after mmu_notifier_invalidate_range_start and before mmu_notifier_invalidate_range_end). Same problem for rmap paths. And we've to remove page pinning to avoid replicating the tlb_gather logic inside KVM (and GRU doesn't work well with page pinning regardless of needing tlb_gather), so without mm_take_all_locks when vmtruncate frees the page, kvm would have no way to notice that it mapped into sptes a page that is going into the freelist without a chance of any further mmu_notifier notification. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Andrea Arcangeli <andrea@qumranet.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Jack Steiner <steiner@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Kanoj Sarcar <kanojsarcar@yahoo.com> Cc: Roland Dreier <rdreier@cisco.com> Cc: Steve Wise <swise@opengridcomputing.com> Cc: Avi Kivity <avi@qumranet.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Anthony Liguori <aliguori@us.ibm.com> Cc: Chris Wright <chrisw@redhat.com> Cc: Marcelo Tosatti <marcelo@kvack.org> Cc: Eric Dumazet <dada1@cosmosbay.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Izik Eidus <izike@qumranet.com> Cc: Anthony Liguori <aliguori@us.ibm.com> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:21 UTC
6beeac7 Andrea Arcangeli 28 July 2008, 22:46:22 UTC mmu-notifiers: add list_del_init_rcu() Introduce list_del_init_rcu() and document it. Signed-off-by: Andrea Arcangeli <andrea@qumranet.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Jack Steiner <steiner@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Kanoj Sarcar <kanojsarcar@yahoo.com> Cc: Roland Dreier <rdreier@cisco.com> Cc: Steve Wise <swise@opengridcomputing.com> Cc: Avi Kivity <avi@qumranet.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Anthony Liguori <aliguori@us.ibm.com> Cc: Chris Wright <chrisw@redhat.com> Cc: Marcelo Tosatti <marcelo@kvack.org> Cc: Eric Dumazet <dada1@cosmosbay.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Izik Eidus <izike@qumranet.com> Cc: Anthony Liguori <aliguori@us.ibm.com> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:20 UTC
93686ae David Brownell 28 July 2008, 22:46:22 UTC arm: fix HAVE_CLK merge goof This fixes a merge goof whereby ARCH_EP93XX got the "select HAVE_CLK" line which belongs instead with ARCH_AT91. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:20 UTC
4d9c377 Alexey Dobriyan 28 July 2008, 22:46:21 UTC __ratelimit() cpu flags can't be static Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Dave Young <hidave.darkstar@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:20 UTC
14fcc23 Hugh Dickins 28 July 2008, 22:46:19 UTC tmpfs: fix kernel BUG in shmem_delete_inode SuSE's insserve initscript ordering program hits kernel BUG at mm/shmem.c:814 on 2.6.26. It's using posix_fadvise on directories, and the shmem_readpage method added in 2.6.23 is letting POSIX_FADV_WILLNEED allocate useless pages to a tmpfs directory, incrementing i_blocks count but never decrementing it. Fix this by assigning shmem_aops (pointing to readpage and writepage and set_page_dirty) only when it's needed, on a regular file or a long symlink. Many thanks to Kel for outstanding bugreport and steps to reproduce it. Reported-by: Kel Modderman <kel@otaku42.de> Tested-by: Kel Modderman <kel@otaku42.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:20 UTC
ca5b172 Hugh Dickins 28 July 2008, 22:46:18 UTC exec: include pagemap.h again to fix build Fix compilation errors on avr32 and without CONFIG_SWAP, introduced by ba92a43dbaee339cf5915ef766d3d3ffbaaf103c ("exec: remove some includes") In file included from include/asm/tlb.h:24, from fs/exec.c:55: include/asm-generic/tlb.h: In function 'tlb_flush_mmu': include/asm-generic/tlb.h:76: error: implicit declaration of function 'release_pages' include/asm-generic/tlb.h: In function 'tlb_remove_page': include/asm-generic/tlb.h:105: error: implicit declaration of function 'page_cache_release' make[1]: *** [fs/exec.o] Error 1 This straightforward part-revert is nobody's favourite patch to address the underlying tlb.h needs swap.h needs pagemap.h (but sparc won't like that) mess; but appropriate to fix the build now before any overhaul. Reported-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Reported-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Tested-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 23:30:20 UTC
63add2f Linus Torvalds 28 July 2008, 22:13:42 UTC Merge branch 'cpus4096-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: cpu masks: optimize and clean up cpumask_of_cpu() cpumask: export cpumask_of_cpu_map cpumask: change cpumask_of_cpu_ptr to use new cpumask_of_cpu cpumask: put cpumask_of_cpu_map in the initdata section cpumask: make cpumask_of_cpu_map generic 28 July 2008, 22:13:42 UTC
3684a60 James Bottomley 28 July 2008, 22:11:44 UTC ipwireless: fix compile failure There's a brown paper bag compile failure introduced by this patch commit a01386924874c4d6d67f8a34e66f04452c2abb69 Author: David Sterba <dsterba@suse.cz> Date: Mon Jul 28 16:53:32 2008 +0200 ipwireless: Preallocate received packet buffers with MRU size Really, it can't ever have been even compile tested. It looks like the closing bracket is in the wrong place, so this is the fix. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 22:12:37 UTC
9e3ee1c Ingo Molnar 28 July 2008, 21:32:00 UTC Merge branch 'linus' into cpus4096 Conflicts: kernel/stop_machine.c Signed-off-by: Ingo Molnar <mingo@elte.hu> 28 July 2008, 21:32:00 UTC
e56b3bc Linus Torvalds 28 July 2008, 18:32:33 UTC cpu masks: optimize and clean up cpumask_of_cpu() Clean up and optimize cpumask_of_cpu(), by sharing all the zero words. Instead of stupidly generating all possible i=0...NR_CPUS 2^i patterns creating a huge array of constant bitmasks, realize that the zero words can be shared. In other words, on a 64-bit architecture, we only ever need 64 of these arrays - with a different bit set in one single world (with enough zero words around it so that we can create any bitmask by just offsetting in that big array). And then we just put enough zeroes around it that we can point every single cpumask to be one of those things. So when we have 4k CPU's, instead of having 4k arrays (of 4k bits each, with one bit set in each array - 2MB memory total), we have exactly 64 arrays instead, each 8k bits in size (64kB total). And then we just point cpumask(n) to the right position (which we can calculate dynamically). Once we have the right arrays, getting "cpumask(n)" ends up being: static inline const cpumask_t *get_cpu_mask(unsigned int cpu) { const unsigned long *p = cpu_bit_bitmap[1 + cpu % BITS_PER_LONG]; p -= cpu / BITS_PER_LONG; return (const cpumask_t *)p; } This brings other advantages and simplifications as well: - we are not wasting memory that is just filled with a single bit in various different places - we don't need all those games to re-create the arrays in some dense format, because they're already going to be dense enough. if we compile a kernel for up to 4k CPU's, "wasting" that 64kB of memory is a non-issue (especially since by doing this "overlapping" trick we probably get better cache behaviour anyway). [ mingo@elte.hu: Converted Linus's mails into a commit. See: http://lkml.org/lkml/2008/7/27/156 http://lkml.org/lkml/2008/7/28/320 Also applied a family filter - which also has the side-effect of leaving out the bits where Linus calls me an idio... Oh, never mind ;-) ] Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 28 July 2008, 20:20:41 UTC
414f746 Ingo Molnar 28 July 2008, 19:14:43 UTC Merge branch 'linus' into cpus4096 28 July 2008, 19:14:43 UTC
f934fb1 Linus Torvalds 28 July 2008, 16:59:26 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: add driver for Atmel integrated touchscreen controller Input: ads7846 - optimize order of calculating Rt in ads7846_rx() Input: ads7846 - fix sparse endian warnings Input: uinput - remove duplicate include Input: serio - offload resume to kseriod Input: serio - mark serio_register_driver() __must_check 28 July 2008, 16:59:26 UTC
3988ba0 Linus Torvalds 28 July 2008, 16:46:00 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm: dlm: fix uninitialized variable for search_rsb_list callers dlm: release socket on error dlm: fix basts for granted CW waiting PR/CW dlm: check for null in device_write 28 July 2008, 16:46:00 UTC
d9089c2 Linus Torvalds 28 July 2008, 16:05:35 UTC Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (25 commits) powerpc: Disable 64K hugetlb support when doing 64K SPU mappings powerpc/powermac: Fixup default serial port device for pmac_zilog powerpc/powermac: Use sane default baudrate for SCC debugging powerpc/mm: Implement _PAGE_SPECIAL & pte_special() for 64-bit powerpc: Show processor cache information in sysfs powerpc: Make core id information available to userspace powerpc: Make core sibling information available to userspace powerpc/vio: More fallout from dma_mapping_error API change ibmveth: Fix multiple errors with dma_mapping_error conversion powerpc/pseries: Fix CMO sysdev attribute API change fallout powerpc: Enable tracehook for the architecture powerpc: Add TIF_NOTIFY_RESUME support for tracehook powerpc: Add asm/syscall.h with the tracehook entry points powerpc: Make syscall tracing use tracehook.h helpers powerpc: Call tracehook_signal_handler() when setting up signal frames powerpc: Update cpu_sibling_maps dynamically powerpc: register_cpu_online should be __cpuinit powerpc: kill useless SMT code in prom_hold_cpus powerpc: Fix 8xx build failure powerpc: Fix vio build warnings ... 28 July 2008, 16:05:35 UTC
bda426f Linus Torvalds 28 July 2008, 15:41:56 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6 * git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6: Remove deprecated virt_to_bus() 28 July 2008, 15:41:56 UTC
b10a8b7 Linus Torvalds 28 July 2008, 15:41:13 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (72 commits) sh: SuperH Mobile CEU and camera platform data for AP325RXA sh: Update smc911x platform data for AP325RXA sh: SuperH Mobile LCDC platform data for AP325RXA sh: Add SuperH Mobile CEU platform data for Migo-R sh: Add SuperH Mobile LCDC platform data for Migo-R sh: Move asid_cache() out of ifdef to fix SH-3/4 nommu build. sh: Workaround for __put_user_asm() bug with gcc 4.x on big-endian. sh: Wire up new syscalls. sh: fix uImage Entry Point sh_keysc: remove request_mem_region() and release_mem_region() sh: Don't miss pending signals returning to user mode after signal processing sh: Use clk_always_enable() on sh7366 sh: Use clk_always_enable() on sh7343 / SE77343 sh: Use clk_always_enable() on sh7722 / Migo-R / SE7722 sh: Use clk_always_enable() on sh7723 / ap325rxa sh: Introduce clk_always_enable() function sh: Show all clocks and their state in /proc/clocks sh: Merge sh7343 and sh7722 clock code sh: Add SuperH Mobile MSTPCR bits to clock framework sh: Use arch_flags to simplify sh7722 siu clock code ... 28 July 2008, 15:41:13 UTC
37eaf8c Linus Torvalds 28 July 2008, 15:37:46 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: stop_machine: fix up ftrace.c stop_machine: Wean existing callers off stop_machine_run() stop_machine(): stop_machine_run() changed to use cpu mask Hotplug CPU: don't check cpu_online after take_cpu_down Simplify stop_machine stop_machine: add ALL_CPUS option module: fix build warning with !CONFIG_KALLSYMS 28 July 2008, 15:37:46 UTC
58f2507 Linus Torvalds 28 July 2008, 15:35:40 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (98 commits) V4L/DVB (8549): mxl5007: Fix an error at include file V4L/DVB (8548): pwc: Fix compilation V4L/DVB (8546): add tuner-3036 and dpc7146 drivers to feature-removal-schedule.txt V4L/DVB (8546): saa7146: fix read from uninitialized memory V4L/DVB (8544): gspca: probe/open race. V4L/DVB (8543): em28xx: Rename #define for Compro VideoMate ForYou/Stereo V4L/DVB (8542): em28xx: AMD ATI TV Wonder HD 600 entry at cards struct is duplicated V4L/DVB (8541): em28xx: HVR-950 entry is duplicated. V4L/DVB (8540): em28xx-cards: Add Compro VideoMate ForYou/Stereo model V4L/DVB (8539): em28xx-cards: New supported IDs for analog models V4L/DVB (8538): em28xx-cards: Add GrabBeeX+ USB2800 model V4L/DVB (8534): remove select's of FW_LOADER V4L/DVB (8522): videodev2: Fix merge conflict V4L/DVB (8532): mxl5007t: remove excessive locks V4L/DVB (8531): mxl5007t: move i2c gate handling outside of mutex protected code blocks V4L/DVB (8530): au0828: add support for new revision of HVR950Q V4L/DVB (8529): mxl5007t: enable _init and _sleep power management functionality V4L/DVB (8528): add support for MaxLinear MxL5007T silicon tuner V4L/DVB (8526): saa7146: fix VIDIOC_ENUM_FMT V4L/DVB (8525): fix a few assorted spelling mistakes. ... 28 July 2008, 15:35:40 UTC
c32f1a3 Linus Torvalds 28 July 2008, 15:33:25 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Set CONFIG_HAVE_ARCH_TRACEHOOK sparc: Add task_pt_regs(). sparc: Add call to tracehook_signal_handler(). sparc: Create and use TIF_NOTIFY_RESUME. sparc: Use tracehook routines in syscall_trace(). sparc64: tracehook: CONFIG_HAVE_ARCH_TRACEHOOK sparc: Add user_stack_pointer(). sparc64: tracehook_signal_handler sparc64: tracehook: TIF_NOTIFY_RESUME sparc: Add asm/syscall.h sparc64: tracehook syscall sparc: enable headers_export again sparc, sparc64: use arch/sparc/include 28 July 2008, 15:33:25 UTC
4f31f30 Linus Torvalds 28 July 2008, 15:32:25 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: net: missing bits of net-namespace / sysctl ipcomp: Fix warnings after ipcomp consolidation. dccp: Add check for truncated ICMPv6 DCCP error packets dccp: Fix incorrect length check for ICMPv4 packets dccp: Add check for sequence number in ICMPv6 message dccp: Fix sequence number check for ICMPv4 packets dccp: Bug-Fix - AWL was never updated dccp: Allow to distinguish original and retransmitted packets 28 July 2008, 15:32:25 UTC
1486361 Randy Dunlap 28 July 2008, 03:44:24 UTC SubmittingPatches: add git pull & diffstat format info Add git pull command info and diffstat summary info so that we don't have to search email archives for it repeatedly. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:31:58 UTC
1f07be1 Stephen Rothwell 28 July 2008, 01:05:04 UTC more sysdev API change fallout - drivers/base/memory.c Noticed because of this warning: drivers/base/memory.c:279: warning: initialization from incompatible pointer type Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:31:58 UTC
b032bf7 Thomas Gleixner 27 July 2008, 21:47:12 UTC ACPI/CPUIDLE: prevent setting pm_idle to NULL pm_idle_save resp. pm_idle_old can be NULL when the restore code in acpi_processor_cst_has_changed() resp. cpuidle_uninstall_idle_handler() is called. This can set pm_idle unconditinally to NULL, which causes the kernel to panic when calling pm_idle in the x86 idle code. This was covered by an extra check for !pm_idle in the x86 idle code, which was removed during the x86 idle code refactoring. Instead of restoring the pm_idle check in the x86 code prevent the acpi/cpuidle code to set pm_idle to NULL. Reported by: Dhaval Giani http://lkml.org/lkml/2008/7/2/309 Based on a debug patch from Ingo Molnar Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:31:58 UTC
9ffc169 Linus Torvalds 28 July 2008, 15:28:50 UTC Merge branch 'i2c-for-linus' of git://aeryn.fluff.org.uk/bjdooks/linux * 'i2c-for-linus' of git://aeryn.fluff.org.uk/bjdooks/linux: i2c: Blackfin I2C Driver: Functional power management support i2c: Documentation: upgrading clients HOWTO i2c: S3C24XX I2C frequency scaling support. i2c: i2c_gpio: keep probe resident for hotplugged devices. i2c: S3C2410: Pass the I2C bus number via drivers platform data 28 July 2008, 15:28:50 UTC
a013869 David Sterba 28 July 2008, 14:53:32 UTC ipwireless: Preallocate received packet buffers with MRU size ipwireless: Preallocate received packet buffers with MRU size Packets are assembled from link size (~300 bytes) up to PPP MRU (1500 by default). Try to preallocate full size rather than repeatedly advance buffer size by 256 bytes. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
0f38c47 David Sterba 28 July 2008, 14:53:27 UTC ipwireless: Put packets to pool start ipwireless: Put packets to pool start Put packets to pool start, try to reuse cached memory. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
bee9c7c David Sterba 28 July 2008, 14:53:21 UTC ipwireless: Increase PPP outgoing queue size ipwireless: Increase PPP outgoing queue size Increase default size of PPP outgoing queue. Currently set to 1, which means that a packet quickly following another pushed by PPP must wait until hardware actually sends the previous and PPP has to be waken up by ppp_wakeup(). This slows down upstream. Now PPP can push more packets at once which get buffered inside driver and pushed immediatelly to hardware when previous packet is out. Experiments show that size = 10 is quite good for all connection types (GPRS/EDGE/UMTS) and gains 4 KB/sec of upload for UMTS for batch uploads. Need for higher queue size than 10 occures in only < 0.1 % of cases. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
09e491e David Sterba 28 July 2008, 14:53:16 UTC ipwireless: Explicitly request io and mem regions ipwireless: Explicitly request io and mem regions Documentation/pcmcia/driver-changes.txt says, that driver should call request_region for used memory/io regions since PCMCIA does not do this (since 2.6.8). Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
ff3e990 David Sterba 28 July 2008, 14:53:11 UTC ipwireless: Constify buffer variables ipwireless: Constify buffer variables Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
93110f6 David Sterba 28 July 2008, 14:53:05 UTC ipwireless: Do not return value from sending funcs ipwireless: Do not return value from sending funcs Do not return value from do_send_fragment and do_send_packet, it's not used. The packet size checks are not useful too: * zero length packet will never be sent, caller always passes packet_header size which is either 1 or 3 * MTU check is done in caller, no need to repeat Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
d54c275 David Sterba 28 July 2008, 14:53:00 UTC ipwireless: Remove endian-dependent bitfields ipwireless: Remove endian-dependent bitfields Remove endian-dependent bitfields and use bitmasks to transform packet header bitfields from/to machine order. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
622e713 David Sterba 28 July 2008, 14:52:55 UTC ipwireless: Glue splitted printk strings back ipwireless: Glue splitted printk strings back Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
2fc5577 David Sterba 28 July 2008, 14:52:49 UTC ipwireless: Remove pt_regs from interrupt handler ipwireless: Remove pt_regs from interrupt handler Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
63c4dbd David Sterba 28 July 2008, 14:52:44 UTC ipwireless: Rename spinlock variables to lock ipwireless: Rename spinlock variables to lock Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
2e71316 David Sterba 28 July 2008, 14:52:39 UTC ipwireless: Remove unused defines ipwireless: Remove unused defines Remove unused defines, defines hiding variables, defines hiding 0. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
d4c0deb David Sterba 28 July 2008, 14:52:33 UTC ipwireless: Misc cleanups ipwireless: Misc cleanups - remove likely() and some extra () in ifs - use unsigned in for loops - remove useless typecasts - remove obvious comments - add () around ?: Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 28 July 2008, 15:28:03 UTC
958585f Michael Hennerich 27 July 2008, 06:41:54 UTC i2c: Blackfin I2C Driver: Functional power management support PM_SUSPEND_MEM: Blackfin does not maintain register state through Hibernate. Save and restore peripheral base initialization during PM transitions. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org> 28 July 2008, 11:41:03 UTC
31321b7 Ben Dooks 28 July 2008, 11:04:08 UTC i2c: Documentation: upgrading clients HOWTO Add a document describing how i2c clients on Linux 2.6 can be moved from the old to the new driver model. Signed-off-by: Ben Dooks <ben-linux@fluff.org> 28 July 2008, 11:41:02 UTC
61c7cff Ben Dooks 28 July 2008, 11:04:07 UTC i2c: S3C24XX I2C frequency scaling support. Add support for CPU frequency scaling to the S3C24XX I2C driver. Signed-off-by: Ben Dooks <ben-linux@fluff.org> 28 July 2008, 11:41:01 UTC
1efe7c5 Ben Dooks 28 July 2008, 11:04:09 UTC i2c: i2c_gpio: keep probe resident for hotplugged devices. Change the i2c_gpio driver to use platform_driver_register() instead of platform_driver_probe() to ensure that is can attach to any devices that may be loaded after it has initialised. Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org> 28 July 2008, 11:40:44 UTC
399dee2 Ben Dooks 28 July 2008, 11:04:06 UTC i2c: S3C2410: Pass the I2C bus number via drivers platform data Allow the platform data to specify the bus bumber that the new I2C bus will be given. This is to allow the use of the board registration mechanism to specify the new style of I2C device registration which allows boards to provide a list of attached devices. Note, as discussed on the mailing list, we have dropped backwards compatibility of adding an dynamic bus number as it should not affect most boards to have the bus pinned to 0 if they have either not specified platform data for driver. Any board supplying platform data will automatically have the bus_num field set to 0, and anyone who needs the driver on a different bus number can supply platform data to set bus_num. Signed-off-by: Ben Dooks <ben-linux@fluff.org> 28 July 2008, 11:05:26 UTC
7878ac8 Karsten Keil 28 July 2008, 10:21:25 UTC Remove deprecated virt_to_bus() Please pull from git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6.git master This was a forgotten item in a printk from the old driver, the DMA allocation use already the new interface. Signed-off-by: Karsten Keil <kkeil@suse.de> 28 July 2008, 10:21:25 UTC
8b2224d Magnus Damm 28 July 2008, 10:14:35 UTC sh: SuperH Mobile CEU and camera platform data for AP325RXA Add AP325RXA specific platform data for on-chip sh7723 CEU and ncm03j camera. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 10:15:39 UTC
4875ea2 Magnus Damm 28 July 2008, 10:11:07 UTC sh: Update smc911x platform data for AP325RXA Pass board specific smc911x parameters using struct smc911x_platdata. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 10:14:27 UTC
6968980 Magnus Damm 28 July 2008, 10:07:04 UTC sh: SuperH Mobile LCDC platform data for AP325RXA Add LCD panel platform data for the AP325RXA board. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 10:08:19 UTC
1765534 Magnus Damm 28 July 2008, 09:51:01 UTC sh: Add SuperH Mobile CEU platform data for Migo-R Add Migo-R specific platform data for on-chip sh7722 CEU and ov772x camera. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:51:07 UTC
8b1285f Magnus Damm 28 July 2008, 09:47:30 UTC sh: Add SuperH Mobile LCDC platform data for Migo-R Add WVGA and QVGA LCD panel support to Migo-R. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:48:06 UTC
761656e Paul Mundt 28 July 2008, 09:39:25 UTC sh: Move asid_cache() out of ifdef to fix SH-3/4 nommu build. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:39:25 UTC
2b4b2bb Yoshinori Sato 28 July 2008, 09:36:13 UTC sh: Workaround for __put_user_asm() bug with gcc 4.x on big-endian. I think this problem is GCC(4.1.2) bug. Syscall "getdents" returned "dirent->d_off" is always 0. I think other EB enviroment have same problem. Problem code 0c03c954 <filldir>: : c03c97a: 58 f7 mov.l @(28,r15),r8 !-> offset (high) c03c97c: 59 f8 mov.l @(32,r15),r9 !-> offset (low) c03c97e: 53 f9 mov.l @(36,r15),r3 c03c980: 54 fa mov.l @(40,r15),r4 : c03c9a0: 21 82 mov.l r8,@r1 !offset(high) -> dirent->d_off It's workaround patch. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:36:13 UTC
44f9598 Paul Mundt 28 July 2008, 09:34:45 UTC sh: Wire up new syscalls. This wires up the signalfd4, eventfd2, epoll_create1, dup3, pipe2, and inotify_init1 syscalls. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:34:45 UTC
82cb1f6 Yoshihiro Shimoda 23 July 2008, 07:49:06 UTC sh: fix uImage Entry Point fix the problem that cannot boot using uImage when PAGE_SIZE is 8kbyte or 64kbyte. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:16:41 UTC
d3aa43a Tetsuya Mukawa 18 July 2008, 22:46:53 UTC sh_keysc: remove request_mem_region() and release_mem_region() Remove request_mem_region() and release_mem_region() from sh_keysc driver. Those functions can find resource conflict, but it is already checked in platform_device_add(). Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp> Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:37 UTC
0b1689c Stuart MENEFY 17 July 2008, 12:08:40 UTC sh: Don't miss pending signals returning to user mode after signal processing Without this patch, signals sent during architecture specific signal handling (typically as a result of the user's stack being inaccessible) are ignored. This is the SH version of commit c3ff8ec31c1249d268cd11390649768a12bec1b9 which was for the i386. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:37 UTC
d7f1a9a Magnus Damm 17 July 2008, 10:20:11 UTC sh: Use clk_always_enable() on sh7366 Use clk_always_enable() in the sh7366 processor code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:37 UTC
8fa509a Magnus Damm 17 July 2008, 10:18:24 UTC sh: Use clk_always_enable() on sh7343 / SE77343 Use clk_always_enable() on the sh7343 processor and in the board code for Solution Engine 7343. Remove duplicate MSTPCR register definitions. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:37 UTC
6c7d826 Magnus Damm 17 July 2008, 10:16:11 UTC sh: Use clk_always_enable() on sh7722 / Migo-R / SE7722 Use clk_always_enable() on the sh7722 processor and in the board code for Migo-R and Solution Engine 7722. Remove duplicate MSTPCR register definitions. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:37 UTC
9ca6eca Magnus Damm 17 July 2008, 10:13:34 UTC sh: Use clk_always_enable() on sh7723 / ap325rxa Use clk_always_enable() on the sh7723 processor and in the ap325rxa board code. Remove duplicate MSTPCR register definitions. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:37 UTC
de92542 Magnus Damm 17 July 2008, 10:09:51 UTC sh: Introduce clk_always_enable() function Add SuperH specific funcion clk_always_enable(), useful to enable MSTPCR bits in processor or board specific code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:36 UTC
152fe36 Magnus Damm 17 July 2008, 10:05:54 UTC sh: Show all clocks and their state in /proc/clocks Show all clocks in /proc/clocks, and also show if they are enabled or disabled. This is useful to show MSTPCR bits on SuperH Mobile processors. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:36 UTC
1312994 Magnus Damm 17 July 2008, 10:02:23 UTC sh: Merge sh7343 and sh7722 clock code This code makes sh7343 share the sh7722 clock code. Instead of just using the good and very old sh7343 clock implmentation, switch to the new MSTPCR enabled clock code. SIU clocks are disabled on sh7343 for now. With this change all SuperH Mobile devices now use the same clock code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:36 UTC
aea167c Magnus Damm 17 July 2008, 09:56:15 UTC sh: Add SuperH Mobile MSTPCR bits to clock framework Handle module stop clock bits in MSTPCRn through the clock framework. The clocks are named after the bits in the data sheet. The association between bit number and hardware block is processor specific. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:36 UTC
3fec18b Magnus Damm 17 July 2008, 09:52:19 UTC sh: Use arch_flags to simplify sh7722 siu clock code Make use of arch_flags to simplify the SIU clock code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:36 UTC
5c8f9d9 Magnus Damm 17 July 2008, 09:48:57 UTC sh: Add arch_flags to struct clk Add arch_flags to struct clk so we can keep per-clock private data somewhere and share code between multiple clocks. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:35 UTC
c46acb8 Adrian Bunk 16 July 2008, 16:45:40 UTC fix sh ptep_get_and_clear breakage Commit 1ea0704e0da65b2b46f9142ff1391163aac24060 (mm: add a ptep_modify_prot transaction abstraction) triggered on sh build errors like the following: <-- snip --> ... CC arch/sh/mm/pg-sh4.o cc1: warnings being treated as errors include2/asm/pgtable.h:139: error: 'ptep_get_and_clear' declared inline after being called include2/asm/pgtable.h:139: error: previous declaration of 'ptep_get_and_clear' was here make[2]: *** [arch/sh/mm/pg-sh4.o] Error 1 <-- snip --> Since there's no good reason for marking these global functions as "inline" this patch therefore removes the inline's. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:35 UTC
cbe9da0 Yoshihiro Shimoda 16 July 2008, 11:21:09 UTC sh: Renesas R0P7785LC0011RL board support This adds initial support for the Renesas R0P7785LC0011RL board. This patch supports 29bit address mode only. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:35 UTC
1eca5c9 Magnus Damm 16 July 2008, 10:02:54 UTC sh: Add memory chunks to SH-Mobile UIO devices This patch adds physically contiguous memory chunks to the UIO devices. The same strategy can be used in the future for the CEU as well. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:35 UTC
714750d Magnus Damm 15 July 2008, 12:55:03 UTC sh: Export sh7366 VPU, VEU(1), VEU(2) using uio_pdrv_genirq This patch exports the VPU, VEU(1) and VEU(2) blocks of the sh7366 to user space using the uio_pdrv_genirq platform driver. While at it, fix up the VEU(2) interrupt vector. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:34 UTC
6874548 Magnus Damm 15 July 2008, 12:53:33 UTC sh: Export sh7723 VPU, VEU2H0, VEU2H1 using uio_pdrv_genirq This patch exports the VPU, VEU2H0 and VEU2H1 blocks of the sh7723 to user space using the uio_pdrv_genirq platform driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:34 UTC
a55f6d2 Magnus Damm 15 July 2008, 12:52:19 UTC sh: Export sh7722 VPU and VEU using uio_pdrv_genirq This patch exports the VPU and VEU blocks of the sh7722 to user space using the uio_pdrv_genirq platform driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:34 UTC
c901c96 Magnus Damm 15 July 2008, 12:51:39 UTC sh: Export sh7343 VPU and VEU using uio_pdrv_genirq This patch exports the VPU and VEU blocks of the sh7343 to user space using the uio_pdrv_genirq platform driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:34 UTC
6e80f5e Yoshinori Sato 09 July 2008, 16:20:03 UTC sh2(A) exception handler update This patch is By sh2 - Remove duplicate code - Reduce stack usage - Cleanup and little optimize By sh2a - Add missing handler(256 to 511) - Use sh2a instructions handler Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:34 UTC
cafd63b Yoshihiro Shimoda 07 July 2008, 12:11:54 UTC sh: update Solution Engine 7343 updated the following codes for Solution Endine 7343: - fix compile error in arch/sh/boards/se/7343/irq.c - add nor flash physmaps - update defconfig Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:34 UTC
a4e1d08 Yoshihiro Shimoda 07 July 2008, 12:11:51 UTC sh: update sh7343 code updated the following codes for SH7343: - add register_intc_controller() - add EARLY_SCIF_CONSOLE_PORT - add define of CPG register Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:34 UTC
73382f7 Magnus Damm 05 July 2008, 03:33:30 UTC sh: fix pg-sh4.c build breakage in linux-next Remove inline from ptep_get_and_clean() to match with header file prototype. Makes linux-next build. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:34 UTC
026953d Magnus Damm 05 July 2008, 03:32:44 UTC sh: enable I2C on the ap325rxa board This patch enables I2C on the sh7723-based ap325rxa board. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:33 UTC
0fff76f Magnus Damm 05 July 2008, 03:32:23 UTC sh: add SuperH Mobile I2C platform data to sh7366 This patch adds platform data for the single I2C channel on sh7366. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:33 UTC
da7d302 Magnus Damm 05 July 2008, 03:32:06 UTC sh: add SuperH Mobile I2C platform data to sh7723 This patch adds platform data for the single I2C channel on sh7723. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:33 UTC
7549079 Magnus Damm 05 July 2008, 03:31:46 UTC sh: add SuperH Mobile I2C platform data to sh7343 This patch adds platform data for two I2C channels to the sh7343. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:33 UTC
6bdfb22 Yoshihiro Shimoda 04 July 2008, 03:37:12 UTC sh: add interrupt ack code to sh4a This patch is based on interrupt acknowledge code for external interrupt sources on sh3 processors and adds on sh4a processors. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:33 UTC
f12ae6b Yoshinori Sato 04 July 2008, 03:54:51 UTC sh: Fix up link error on SH-2 zImage with older binutils. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:33 UTC
f2fb4e4 Stuart Menefy 02 July 2008, 08:51:23 UTC sh: Conditionally re-enable IRQs in fault path. The current kernel behaviour is to reenable interrupts unconditionally when taking a page fault. This patch changes this to only enable them if interrupts were previously enabled. It also fixes a problem seen with this fix in place: the kernel previously flushed the vsyscall page when handling a signal, which is not only unncessary, but caused a possible sleep with interrupts disabled. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:33 UTC
068f591 Paul Mundt 02 July 2008, 08:46:40 UTC sh: Record the major cut revision for probed SH-4A parts. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:32 UTC
09b5a10 Chris Smith 02 July 2008, 06:17:11 UTC sh: Optimized flush_icache_range() implementation. Add implementation of flush_icache_range() suitable for signal handler and kprobes. Remove flush_cache_sigtramp() and change signal.c to use flush_icache_range(). Signed-off-by: Chris Smith <chris.smith@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:32 UTC
3611ee7 Stuart Menefy 02 July 2008, 06:15:09 UTC sh: Stub in silicon cut in CPU info. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:32 UTC
ef9247e Paul Mundt 02 July 2008, 04:58:38 UTC sh: Tidy up the SH-3 exception vector table. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:32 UTC
d88a3ea Yoshinori Sato 02 July 2008, 02:20:24 UTC SH7619 add ethernet controler support - Add EtherC + PHY resource define. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:32 UTC
fafb7a9 Nobuhiro Iwamatsu 24 June 2008, 04:00:52 UTC sh: Remove sh_pcic_io_xxx function from Solution Engine IO code sh_pcic_io_xxx function are very old. In linux-2.4, mrshpc_ss socket driver used this function. But there is not this driver to the present kernel. I deleted these cords and checked operation. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:32 UTC
7c93d87 Nobuhiro Iwamatsu 19 June 2008, 10:27:55 UTC sh: Fix Kconfig of AP-325RXA The CPU of AP-325RXA is SH7723, but a CPU becomes selectable. This patch fixes this problem. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:31 UTC
787d9d7 Nobuhiro Iwamatsu 18 June 2008, 09:32:03 UTC sh: Clean up code of Solution Engine 770x Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:31 UTC
b2e4c10 Nobuhiro Iwamatsu 18 June 2008, 09:31:46 UTC sh: Update Solution Enginge 7712 defconfig Enable SH-Ether support and NFS userland support. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:31 UTC
ffb91ad Nobuhiro Iwamatsu 18 June 2008, 09:29:06 UTC sh: Solution Enginge 7710/7712 SH-Ether support Add support SH-Ether for Hitachi Solution Engine. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:30 UTC
4c1cfab Adrian Bunk 18 June 2008, 00:36:50 UTC sh/kernel/ cleanups This patch contains the following cleanups: - make the following needlessly global code static: - cf-enabler.c: cf_init() - cpu/clock.c: __clk_enable() - cpu/clock.c: __clk_disable() - process_32.c: default_idle() - time_32.c: struct clocksource_sh - timers/timer-tmu.c: struct tmu_timer_ops - remove the following unused functions (no CONFIG_BLK_DEV_FD on sh): - process_{32,64}.c: disable_hlt() - process_{32,64}.c: enable_hlt() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:30 UTC
6241003 Adrian Bunk 17 June 2008, 22:33:40 UTC sh: make pcibios_max_latency static This patch makes the needlessly global pcibios_max_latency static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:30 UTC
175fb09 Adrian Bunk 17 June 2008, 22:31:03 UTC sh: make EARLY_PCI_OP's static This patch makes the needlessly global EARLY_PCI_OP's static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 28 July 2008, 09:10:30 UTC
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