- 12 2月, 2009 17 次提交
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由 Marcel Selhorst 提交于
Update my email address. Signed-off-by: NMarcel Selhorst <m.selhorst@sirrix.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 MinChan Kim 提交于
When I tested following program, I found that the mlocked counter is strange. It cannot free some mlocked pages. It is because try_to_unmap_file() doesn't check real page mappings in vmas. That is because the goal of an address_space for a file is to find all processes into which the file's specific interval is mapped. It is related to the file's interval, not to pages. Even if the page isn't really mapped by the vma, it returns SWAP_MLOCK since the vma has VM_LOCKED, then calls try_to_mlock_page. After this the mlocked counter is increased again. COWed anon page in a file-backed vma could be a such case. This patch resolves it. -- my test program -- int main() { mlockall(MCL_CURRENT); return 0; } -- before -- root@barrios-target-linux:~# cat /proc/meminfo | egrep 'Mlo|Unev' Unevictable: 0 kB Mlocked: 0 kB -- after -- root@barrios-target-linux:~# cat /proc/meminfo | egrep 'Mlo|Unev' Unevictable: 8 kB Mlocked: 8 kB Signed-off-by: NMinChan Kim <minchan.kim@gmail.com> Acked-by: NLee Schermerhorn <lee.schermerhorn@hp.com> Acked-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Tested-by: NLee Schermerhorn <lee.schermerhorn@hp.com> Cc: Hugh Dickins <hugh@veritas.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 Kara 提交于
This reverts commit c87591b7. Since journal_start_commit() is now fixed to return 1 when we started a transaction commit, there's some transaction waiting to be committed or there's a transaction already committing, we don't need to call ext3_force_commit() in ext3_sync_fs(). Furthermore ext3_force_commit() can unnecessarily create sync transaction which is expensive so it's worthwhile to remove it when we can. Cc: Eric Sandeen <sandeen@redhat.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jan Kara 提交于
journal_start_commit() returns 1 if either a transaction is committing or the function has queued a transaction commit. But it returns 0 if we raced with somebody queueing the transaction commit as well. This resulted in ext3_sync_fs() not functioning correctly (description from Arthur Jones): In the case of a data=ordered umount with pending long symlinks which are delayed due to a long list of other I/O on the backing block device, this causes the buffer associated with the long symlinks to not be moved to the inode dirty list in the second phase of fsync_super. Then, before they can be dirtied again, kjournald exits, seeing the UMOUNT flag and the dirty pages are never written to the backing block device, causing long symlink corruption and exposing new or previously freed block data to userspace. This can be reproduced with a script created by Eric Sandeen <sandeen@redhat.com>: #!/bin/bash umount /mnt/test2 mount /dev/sdb4 /mnt/test2 rm -f /mnt/test2/* dd if=/dev/zero of=/mnt/test2/bigfile bs=1M count=512 touch /mnt/test2/thisisveryveryveryveryveryveryveryveryveryveryveryveryveryveryveryverylongfilename ln -s /mnt/test2/thisisveryveryveryveryveryveryveryveryveryveryveryveryveryveryveryverylongfilename /mnt/test2/link umount /mnt/test2 mount /dev/sdb4 /mnt/test2 ls /mnt/test2/ This patch fixes journal_start_commit() to always return 1 when there's a transaction committing or queued for commit. Cc: Eric Sandeen <sandeen@redhat.com> Cc: Mike Snitzer <snitzer@gmail.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sven Wegener 提交于
We need to pass an unsigned long as the minimum, because it gets casted to an unsigned long in the sysctl handler. If we pass an int, we'll access four more bytes on 64bit arches, resulting in a random minimum value. [rientjes@google.com: fix type of `old_bytes'] Signed-off-by: NSven Wegener <sven.wegener@stealer.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NDavid Rientjes <rientjes@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 Andres Salomon 提交于
We weren't properly allocating the cmap for depths greater than 8bpp, which caused pain for things like DirectFB. Also, we never freed the cmap memory upon module unload.. Signed-off-by: NAndres Salomon <dilinger@debian.org> Cc: Marco La Porta <marco-laporta@tiscali.it> Cc: Jordan Crouse <jordan@cosmicpenguin.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andres Salomon 提交于
We weren't properly allocating the cmap for depths greater than 8bpp, which caused pain for things like DirectFB. Also, we never freed the cmap memory upon module unload.. Signed-off-by: NAndres Salomon <dilinger@debian.org> Cc: Marco La Porta <marco-laporta@tiscali.it> Cc: Jordan Crouse <jordan@cosmicpenguin.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Marco La Porta 提交于
We weren't properly allocating the cmap for depths greater than 8bpp, which caused pain for things like DirectFB. Also, we never freed the cmap memory upon module unload.. [dilinger@debian.org: dropped unnecessary code and clean up patch] [dilinger@debian.org: add error checking and handling] Signed-off-by: NAndres Salomon <dilinger@debian.org> Cc: Jordan Crouse <jordan@cosmicpenguin.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robert Jarzmik 提交于
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: NAlessandro Zummo <a.zummo@towertech.it> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Daisuke Nishimura 提交于
migrate_vmas() should check "vma" not "vma->vm_next" for for-loop condition. Signed-off-by: NDaisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mel Gorman 提交于
Commit 5a6fe125 brought hugetlbfs more in line with the core VM by obeying VM_NORESERVE and not reserving hugepages for both shared and private mappings when [SHM|MAP]_NORESERVE are specified. However, it is still taking filesystem quota unconditionally. At fault time, if there are no reserves and attempt is made to allocate the page and account for filesystem quota. If either fail, the fault fails. The impact is that quota is getting accounted for twice. This patch partially reverts 5a6fe125. To help prevent this mistake happening again, it improves the documentation of hugetlb_reserve_pages() Reported-by: NAndy Whitcroft <apw@canonical.com> Signed-off-by: NMel Gorman <mel@csn.ul.ie> Acked-by: NAndy Whitcroft <apw@canonical.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: revert recent sync wakeup changes
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由 Linus Torvalds 提交于
Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: timers: fix TIMER_ABSTIME for process wide cpu timers timers: split process wide cpu clocks/timers, fix x86: clean up hpet timer reinit timers: split process wide cpu clocks/timers, remove spurious warning timers: split process wide cpu clocks/timers signal: re-add dead task accumulation stats. x86: fix hpet timer reinit for x86_64 sched: fix nohz load balancer on cpu offline
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由 Linus Torvalds 提交于
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: ptrace, x86: fix the usage of ptrace_fork() i8327: fix outb() parameter order x86: fix math_emu register frame access x86: math_emu info cleanup x86: include correct %gs in a.out core dump x86, vmi: put a missing paravirt_release_pmd in pgd_dtor x86: find nr_irqs_gsi with mp_ioapic_routing x86: add clflush before monitor for Intel 7400 series x86: disable intel_iommu support by default x86: don't apply __supported_pte_mask to non-present ptes x86: fix grammar in user-visible BIOS warning x86/Kconfig.cpu: make Kconfig help readable in the console x86, 64-bit: print DMI info in the oops trace
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由 Linus Torvalds 提交于
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing, x86: fix constraint for parent variable tracing, x86: fix fixup section to return to original code profiling: fix broken profiling regression
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git://git390.marist.edu/pub/scm/linux-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] Update default configuration. [S390] dasd: fix race in dasd timer handling [S390] dasd: bus_id -> dev_name() conversion. [S390] Fix init irq proc build break. [S390] vdso: fix per cpu vdso pointer in lowcore
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/mm: Fix _PAGE_COHERENT support on classic ppc32 HW
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- 11 2月, 2009 19 次提交
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由 Peter Zijlstra 提交于
Intel reported a 10% regression (mysql+sysbench) on a 16-way machine with these patches: 1596e297: sched: symmetric sync vs avg_overlap d942fb6c: sched: fix sync wakeups Revert them. Reported-by: N"Zhang, Yanmin" <yanmin_zhang@linux.intel.com> Bisected-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
The POSIX timer interface allows for absolute time expiry values through the TIMER_ABSTIME flag, therefore we have to synchronize the timer to the clock every time we start it. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
To decrease the chance of a missed enable, always enable the timer when we sample it, we'll always disable it when we find that there are no active timers in the jiffy tick. This fixes a flood of warnings reported by Mike Galbraith. Reported-by: NMike Galbraith <efault@gmx.de> Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Martin Schwidefsky 提交于
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Stefan Weinhuber 提交于
In dasd_device_set_timer and dasd_block_set_timer we interpret the return value of mod_timer in a wrong way. If the timer expires in the small window between our check of timer_pending and the call to mod_timer, then the timer will be set, mod_timer returns zero and we will call add_timer for a timer that is already pending. As del_timer and mod_timer do all the necessary checking themselves, we can simplify our code and remove the race a the same time. Signed-off-by: NStefan Weinhuber <wein@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Cornelia Huck 提交于
bus_id usage crept in again; fix it. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Sachin Sant 提交于
Embed init_irq_proc(s390) within CONFIG_PROC_FS to fix a build break. Signed-off-by : Sachin Sant <sachinp@in.ibm.com>
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由 Martin Schwidefsky 提交于
The vdso_per_cpu_data entry in the lowcore structure uses __u32 instead of __u64. If the data page is above 4GB the pointer is truncated and the kernel crashes. Reported-by: NMijo Safradin <mijo@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Oleg Nesterov 提交于
I noticed by pure accident we have ptrace_fork() and friends. This was added by "x86, bts: add fork and exit handling", commit bf53de90. I can't test this, ds_request_bts() returns -EOPNOTSUPP, but I strongly believe this needs the fix. I think something like this program int main(void) { int pid = fork(); if (!pid) { ptrace(PTRACE_TRACEME, 0, NULL, NULL); kill(getpid(), SIGSTOP); fork(); } else { struct ptrace_bts_config bts = { .flags = PTRACE_BTS_O_ALLOC, .size = 4 * 4096, }; wait(NULL); ptrace(PTRACE_SETOPTIONS, pid, NULL, PTRACE_O_TRACEFORK); ptrace(PTRACE_BTS_CONFIG, pid, &bts, sizeof(bts)); ptrace(PTRACE_CONT, pid, NULL, NULL); sleep(1); } return 0; } should crash the kernel. If the task is traced by its natural parent ptrace_reparented() returns 0 but we should clear ->btsxxx anyway. Signed-off-by: NOleg Nesterov <oleg@redhat.com> Acked-by: NMarkus Metzger <markus.t.metzger@intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Steven Rostedt 提交于
The constraint used for retrieving and restoring the parent function pointer is incorrect. The parent variable is a pointer, and the address of the pointer is modified by the asm statement and not the pointer itself. It is incorrect to pass it in as an output constraint since the asm will never update the pointer. Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Merge branch 'tip/tracing/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent
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由 Kumar Gala 提交于
The following commit: commit 64b3d0e8 Author: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: Thu Dec 18 19:13:51 2008 +0000 powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED broke setting of the _PAGE_COHERENT bit in the PPC HW PTE. Since we now actually set _PAGE_COHERENT in the Linux PTE we shouldn't be clearing it out before we propogate it to the PPC HW PTE. Reported-by: NMartyn Welch <martyn.welch@gefanuc.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Linus Torvalds 提交于
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] AACI: timeout will reach -1 [ARM] Storage class should be before const qualifier [ARM] pxa: stop and disable IRQ for each DMA channels at startup [ARM] pxa: make more SSCR0 bit definitions visible on multiple processors [ARM] pxa: fix missing of __REG() definition for ac97 registers access [ARM] pxa: fix NAND and MMC clock initialization for pxa3xx
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由 Stefan Richter 提交于
Fix regression due to 5a6fe125, "Do not account for the address space used by hugetlbfs using VM_ACCOUNT" which added an argument to the function hugetlb_file_setup() but not to the macro hugetlb_file_setup(). Reported-by: NChris Clayton <chris2553@googlemail.com> Signed-off-by: NStefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: NMel Gorman <mel@csn.ul.ie> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Add missing sparsemem.h include powerpc/pci: mmap anonymous memory when legacy_mem doesn't exist powerpc/cell: Add missing #include for oprofile powerpc/ftrace: Fix math to calculate offset in TOC powerpc: Don't emulate mr. instructions powerpc/fsl-booke: Fix mapping functions to use phys_addr_t arch/powerpc: Eliminate double sizeof powerpc/cpm2: Fix set interrupt type powerpc/83xx: Fix TSEC0 workability on MPC8313E-RDB boards powerpc/83xx: Fix missing #{address,size}-cells in mpc8313erdb.dts powerpc/83xx: Build breakage for CONFIG_PM but no CONFIG_SUSPEND
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Fix probe_kernel_{read,write}(). sparc64: Kill .fixup section bloat. sparc64: Don't hook up pcr_ops on spitfire chips. sparc64: Call dump_stack() in die_nmi().
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (23 commits) bridge: Fix LRO crash with tun IPv6: fix to set device name when new IPv6 over IPv6 tunnel device is created. gianfar: Fix boot hangs while bringing up gianfar ethernet netfilter: xt_sctp: sctp chunk mapping doesn't work netfilter: ctnetlink: fix echo if not subscribed to any multicast group netfilter: ctnetlink: allow changing NAT sequence adjustment in creation netfilter: nf_conntrack_ipv6: don't track ICMPv6 negotiation message netfilter: fix tuple inversion for Node information request netxen: fix msi-x interrupt handling de2104x: force correct order when writing to rx ring tun: Fix unicast filter overflow drivers/isdn: introduce missing kfree drivers/atm: introduce missing kfree sunhme: Don't match PCI devices in SBUS probe. 9p: fix endian issues [attempt 3] net_dma: call dmaengine_get only if NET_DMA enabled 3c509: Fix resume from hibernation for PnP mode. sungem: Soft lockup in sungem on Netra AC200 when switching interface up RxRPC: Fix a potential NULL dereference r8169: Don't update statistics counters when interface is down ...
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由 Mel Gorman 提交于
When overcommit is disabled, the core VM accounts for pages used by anonymous shared, private mappings and special mappings. It keeps track of VMAs that should be accounted for with VM_ACCOUNT and VMAs that never had a reserve with VM_NORESERVE. Overcommit for hugetlbfs is much riskier than overcommit for base pages due to contiguity requirements. It avoids overcommiting on both shared and private mappings using reservation counters that are checked and updated during mmap(). This ensures (within limits) that hugepages exist in the future when faults occurs or it is too easy to applications to be SIGKILLed. As hugetlbfs makes its own reservations of a different unit to the base page size, VM_ACCOUNT should never be set. Even if the units were correct, we would double account for the usage in the core VM and hugetlbfs. VM_NORESERVE may be set because an application can request no reserves be made for hugetlbfs at the risk of getting killed later. With commit fc8744ad, VM_NORESERVE and VM_ACCOUNT are getting unconditionally set for hugetlbfs-backed mappings. This breaks the accounting for both the core VM and hugetlbfs, can trigger an OOM storm when hugepage pools are too small lockups and corrupted counters otherwise are used. This patch brings hugetlbfs more in line with how the core VM treats VM_NORESERVE but prevents VM_ACCOUNT being set. Signed-off-by: NMel Gorman <mel@csn.ul.ie> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Steven Rostedt 提交于
Impact: fix to prevent a kernel crash on fault If for some reason the pointer to the parent function on the stack takes a fault, the fix up code will not return back to the original faulting code. This can lead to unpredictable results and perhaps even a kernel panic. A fault should not happen, but if it does, we should simply disable the tracer, warn, and continue running the kernel. It should not lead to a kernel crash. Signed-off-by: NSteven Rostedt <srostedt@redhat.com>
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- 10 2月, 2009 4 次提交
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由 Clemens Ladisch 提交于
In i8237A_resume(), when resetting the DMA controller, the parameters to dma_outb() were mixed up. Signed-off-by: NClemens Ladisch <clemens@ladisch.de> [ cleaned up the file a tiny bit. ] Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Roel Kluin 提交于
With a postfix decrement the timeout will reach -1 rather than 0, so the warning will not be issued. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Tobias Klauser 提交于
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Michael Neuling 提交于
arch/powerpc/platforms/pseries/hotplug-memory.c uses remove_section_mapping() but doesn't include sparsemem.h which defines it. This can cause compilation fails for some configs. Signed-off-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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