- 04 3月, 2008 37 次提交
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由 Adrian Bunk 提交于
This patch contains the following cleanups: - make the needlessly global struct disk_type static - #if 0 the unused genhd_media_change_notify() Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Adrian Bunk 提交于
This patch adds a proper prototye for blk_dev_init() in block/blk.h Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Adrian Bunk 提交于
Every file should include the headers containing the externs for its global functions (in this case for __blk_queue_free_tags()). Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Yang Shi 提交于
Fix DMA access of block device in 64-bit kernel on some non-x86 systems with 4GB or upper 4GB memory For some non-x86 systems with 4GB or upper 4GB memory, we need increase the range of addresses that can be used for direct DMA in 64-bit kernel. Signed-off-by: NYang Shi <yang.shi@windriver.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Tejun Heo 提交于
Block layer alignment was used for two different purposes - memory alignment and padding. This causes problems in lower layers because drivers which only require memory alignment ends up with adjusted rq->data_len. Separate out padding such that padding occurs iff driver explicitly requests it. Tomo: restorethe code to update bio in blk_rq_map_user introduced by the commit 40b01b9b according to padding alignment. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 FUJITA Tomonori 提交于
The meaning of rq->data_len was changed to the length of an allocated buffer from the true data length. It breaks SG_IO friends and bsg. This patch restores the meaning of rq->data_len to the true data length and adds rq->extra_len to store an extended length (due to drain buffer and padding). This patch also removes the code to update bio in blk_rq_map_user introduced by the commit 40b01b9b. The commit adjusts bio according to memory alignment (queue_dma_alignment). However, memory alignment is NOT padding alignment. This adjustment also breaks SG_IO friends and bsg. Padding alignment needs to be fixed in a proper way (by a separate patch). Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NJens Axboe <axboe@carl.home.kernel.dk>
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由 Mike Miller 提交于
volumes This patch allows us to display information about all of the logical volumes configured on a particular controller without stepping on memory even when there are many volumes (128 or more) configured. Please consider this for inclusion. Signed-off-by: NMike Miller <mike.miller@hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Jens Axboe 提交于
sys_tee() currently is a bit eager in returning -EAGAIN, it may do so even if we don't have a chance of anymore data becoming available. So improve the logic and only return -EAGAIN if we have an attached writer to the input pipe. Reported by Johann Felix Soden <johfel@gmx.de> and Patrick McManus <mcmanus@ducksong.com>. Tested-by: NJohann Felix Soden <johfel@users.sourceforge.net> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Randy Dunlap 提交于
kernel-doc for block/: - add missing parameters - fix one function's parameter list (remove blank line) - add 2 source files to docbook for non-exported kernel-doc functions Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm由 Linus Torvalds 提交于
* 'slab-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm: slub: fix possible NULL pointer dereference slub: Add kmalloc_large_node() to support kmalloc_node fallback slub: look up object from the freelist once slub: Fix up comments slub: Rearrange #ifdef CONFIG_SLUB_DEBUG in calculate_sizes() slub: Remove BUG_ON() from ksize and omit checks for !SLUB_DEBUG slub: Use the objsize from the kmem_cache_cpu structure slub: Remove useless checks in alloc_debug_processing slub: Remove objsize check in kmem_cache_flags() slub: rename slab_objects to show_slab_objects Revert "unique end pointer" patch slab: avoid double initialization & do initialization in 1 place
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由 Oleg Nesterov 提交于
1. exit_notify() always calls kill_orphaned_pgrp(). This is wrong, we should do this only when the whole process exits. 2. exit_notify() uses "current" as "ignored_task", obviously wrong. Use ->group_leader instead. Test case: void hup(int sig) { printf("HUP received\n"); } void *tfunc(void *arg) { sleep(2); printf("sub-thread exited\n"); return NULL; } int main(int argc, char *argv[]) { if (!fork()) { signal(SIGHUP, hup); kill(getpid(), SIGSTOP); exit(0); } pthread_t thr; pthread_create(&thr, NULL, tfunc, NULL); sleep(1); printf("main thread exited\n"); syscall(__NR_exit, 0); return 0; } output: main thread exited HUP received Hangup With this patch the output is: main thread exited sub-thread exited HUP received Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Oleg Nesterov 提交于
p->exit_state != 0 doesn't mean this process is dead, it may have sub-threads. Change the code to use "p->exit_state && thread_group_empty(p)" instead. Without this patch, ^Z doesn't deliver SIGTSTP to the foreground process if the main thread has exited. However, the new check is not perfect either. There is a window when exit_notify() drops tasklist and before release_task(). Suppose that the last (non-leader) thread exits. This means that entire group exits, but thread_group_empty() is not true yet. As Eric pointed out, is_global_init() is wrong as well, but I did not dare to do other changes. Just for the record, has_stopped_jobs() is absolutely wrong too. But we can't fix it now, we should first fix SIGNAL_STOP_STOPPED issues. Even with this patch ^Z doesn't play well with the dead main thread. The task is stopped correctly but do_wait(WSTOPPED) won't see it. This is another unrelated issue, will be (hopefully) fixed separately. Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Oleg Nesterov 提交于
Factor out the common code in reparent_thread() and exit_notify(). No functional changes. Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Samuel Thibault 提交于
Oddly enough, unsigned int c = '\300'; puts a "negative" value in c, not 0300... This fixes the default unicode compose table by using integers instead of character constants. Signed-off-by: NSamuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Cyrill Gorcunov 提交于
This patch fix possible NULL pointer dereference if kzalloc failed. To be able to return proper error code the function return type is changed to ssize_t (according to callees and sysfs definitions). Signed-off-by: NCyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
Slub is missing some NUMA support for large kmallocs. Provide that. Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Pekka J Enberg 提交于
We only need to look up object from c->page->freelist once in __slab_alloc(). Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
Provide comments and fix up various spelling / style issues. Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
Group SLUB_DEBUG code together to reduce the number of #ifdefs. Move some debug checks under the #ifdef. Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
The BUG_ONs are useless since the pointer derefs will lead to NULL deref errors anyways. Some of the checks are not necessary if no debugging is possible. Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
No need to access the kmem_cache structure. We have the same value in kmem_cache_cpu. Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
Alloc debug processing is never called with a NULL object pointer. No reason to check for NULL. Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
There is no page->offset anymore and also no associated limit on the number of objects. The page->offset field was removed for 2.6.24. So the check in kmem_cache_flags() is now also obsolete (should have been dropped earlier, somehow a hunk vanished). Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
The sysfs callback is better named show_slab_objects since it is always called from the xxx_show callbacks. We need the name for other purposes later. Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Christoph Lameter 提交于
This only made sense for the alternate fastpath which was reverted last week. Mathieu is working on a new version that addresses the fastpath issues but that new code first needs to go through mm and it is not clear if we need the unique end pointers with his new scheme. Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NChristoph Lameter <clameter@sgi.com>
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由 Linus Torvalds 提交于
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Fix freeing of page tables for ARM in free_pgd_slow
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由 Randy Dunlap 提交于
Fix docbook problems in fusion source files. These cause the generated docbook to be incorrect. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Fix docbook problems in kernel-api.tmpl. These cause the generated docbook to be incorrect. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Fix docbook problems in USB source files. These cause the generated docbook to be incorrect. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Fix docbook problem in SCSI source files. These cause the generated docbook to be incorrect. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Fix docbook problems in rapidio source files. These cause the generated docbook to be incorrect. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Fix docbook problems in filesystems.tmpl. These cause the generated docbook to be incorrect. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: x86: revert "x86: fix pmd_bad and pud_bad to support huge pages" x86: revert "x86: CPA: avoid split of alias mappings"
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (24 commits) [POWERPC] Convert the cell IOMMU fixed mapping to 16M IOMMU pages [POWERPC] Allow for different IOMMU page sizes in cell IOMMU code [POWERPC] Cell IOMMU: n_pte_pages is in 4K page units, not IOMMU_PAGE_SIZE [POWERPC] Split setup of IOMMU stab and ptab, allocate dynamic/fixed ptabs separately [POWERPC] Move allocation of cell IOMMU pad page [POWERPC] Remove unused pte_offset variable [POWERPC] Use it_offset not pte_offset in cell IOMMU code [POWERPC] Clearup cell IOMMU fixed mapping terminology [POWERPC] enable hardware watchpoints on cell blades [POWERPC] move celleb DABRX definitions [POWERPC] OProfile: enable callgraph support for Cell [POWERPC] spufs: fix use time accounting on SPE-overcommit [POWERPC] spufs: serialize SLB invalidation against SLB loading [POWERPC] spufs: invalidate SLB translation before adding a new entry [POWERPC] spufs: synchronize IRQ when disabling [POWERPC] spufs: fix order of sputrace thread IDs [POWERPC] Xilinx: hwicap cleanup [POWERPC] 4xx: Use correct board info structure in cuboot wrappers [POWERPC] spufs: fix invalid scheduling of forgotten contexts [POWERPC] 44x: add missing define TARGET_4xx and TARGET_440GX to cuboot-taishan ...
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由 Linus Torvalds 提交于
The new code that removed the limitation on the execve string size (which was historically 32 pages) replaced it with a much softer limit based on RLIMIT_STACK which is usually much larger than the traditional limit. See commit b6a2fea3 ("mm: variable length argument support") for details. However, if you have a small stack limit (perhaps because you need lots of stacks in a threaded environment), the new heuristic of allowing up to 1/4th of RLIMIT_STACK to be used for argument and environment strings could actually be smaller than the old limit. So just say that it's ok to have up to ARG_MAX strings regardless of the value of RLIMIT_STACK, and check the rlimit only when going over that traditional limit. (Of course, if you actually have a *really* small stack limit, the whole stack itself will be limited before you hit ARG_MAX, but that has always been true and is clearly the right behaviour anyway). Acked-by: NCarlos O'Donell <carlos@codesourcery.com> Cc: Michael Kerrisk <michael.kerrisk@googlemail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ollie Wild <aaw@google.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
This reverts commit cded932b. Arjan bisected down a boot-time hang to this, saying: ".. it prevents the kernel to finish booting on my (Penryn based) laptop. The boot stops right after freeing the init memory." and while it's not clear exactly what triggers it, at this stage we're better off just reverting it while Ingo tries to figure out what went wrong. Requested-by: NArjan van de Ven <arjan@linux.intel.com> Cc: Hans Rosenfeld <hans.rosenfeld@amd.com> Cc: Nish Aravamudan <nish.aravamudan@gmail.com> Acked-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 03 3月, 2008 3 次提交
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由 Ingo Molnar 提交于
revert commit cded932b, "x86: fix pmd_bad and pud_bad to support huge pages", it causes a bootup hang, as reported and bisected by Arjan van de Ven. Bisected-by: NArjan van de Ven <arjan@linux.intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Rafael J. Wysocki 提交于
Revert: commit 8be8f54b Author: Thomas Gleixner <tglx@linutronix.de> Date: Sat Feb 23 20:43:21 2008 +0100 x86: CPA: avoid split of alias mappings because it clearly mishandles the case when __change_page_attr(), called from __change_page_attr_set_clr(), changes cpa->processed to 1 and cpa_process_alias(cpa) is executed right after that. This crashes my x86-64 test box early in the boot process (ref. http://bugzilla.kernel.org/show_bug.cgi?id=10140#c4). Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Paul Mackerras 提交于
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