- 14 11月, 2005 27 次提交
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由 Robin Holt 提交于
The address based work estimate for unmapping (for lockbreak) is and always was horribly inefficient for sparse mappings. The problem is most simply explained with an example: If we find a pgd is clear, we still have to call into unmap_page_range PGDIR_SIZE / ZAP_BLOCK_SIZE times, each time checking the clear pgd, in order to progress the working address to the next pgd. The fundamental way to solve the problem is to keep track of the end address we've processed and pass it back to the higher layers. From: Nick Piggin <npiggin@suse.de> Modification to completely get away from address based work estimate and instead use an abstract count, with a very small cost for empty entries as opposed to present pages. On 2.6.14-git2, ppc64, and CONFIG_PREEMPT=y, mapping and unmapping 1TB of virtual address space takes 1.69s; with the following patch applied, this operation can be done 1000 times in less than 0.01s From: Andrew Morton <akpm@osdl.org> With CONFIG_HUTETLB_PAGE=n: mm/memory.c: In function `unmap_vmas': mm/memory.c:779: warning: division by zero Due to zap_work -= (end - start) / (HPAGE_SIZE / PAGE_SIZE); So make the dummy HPAGE_SIZE non-zero Signed-off-by: NRobin Holt <holt@sgi.com> Signed-off-by: NNick Piggin <npiggin@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Kirill Korotaev 提交于
In __alloc_pages(): if ((p->flags & (PF_MEMALLOC | PF_MEMDIE)) && !in_interrupt()) { /* go through the zonelist yet again, ignoring mins */ for (i = 0; zones[i] != NULL; i++) { struct zone *z = zones[i]; page = buffered_rmqueue(z, order, gfp_mask); if (page) { zone_statistics(zonelist, z); goto got_pg; } } goto nopage; <<<< HERE!!! FAIL... } kswapd (which has PF_MEMALLOC flag) can fail to allocate memory even when it allocates it with __GFP_NOFAIL flag. Signed-Off-By: NPavel Emelianov <xemul@sw.ru> Signed-Off-By: NDenis Lunev <den@sw.ru> Signed-Off-By: NKirill Korotaev <dev@sw.ru> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
Missing include. Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
drivers/pci/hotplug/pciehp_hpc.c:221: parse error before "pcie_isr" drivers/pci/hotplug/pciehp_hpc.c:221: warning: type defaults to `int' in declaration of `pcie_isr' drivers/pci/hotplug/pciehp_hpc.c:221: warning: data definition has no type or storage class drivers/pci/hotplug/pciehp_hpc.c: In function `hpc_release_ctlr': drivers/pci/hotplug/pciehp_hpc.c:715: implicit declaration of function `free_irq' drivers/pci/hotplug/pciehp_hpc.c: At top level: drivers/pci/hotplug/pciehp_hpc.c:839: parse error before "pcie_isr" drivers/pci/hotplug/pciehp_hpc.c:840: warning: return type defaults to `int' drivers/pci/hotplug/pciehp_hpc.c: In function `pcie_isr': drivers/pci/hotplug/pciehp_hpc.c:850: `IRQ_NONE' undeclared (first use in this function) drivers/pci/hotplug/pciehp_hpc.c:850: (Each undeclared identifier is reported only once drivers/pci/hotplug/pciehp_hpc.c:850: for each function it appears in.) drivers/pci/hotplug/pciehp_hpc.c:979: `IRQ_HANDLED' undeclared (first use in this function) drivers/pci/hotplug/pciehp_hpc.c: In function `pcie_init': drivers/pci/hotplug/pciehp_hpc.c:1362: implicit declaration of function `request_irq' Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Richard Purdie 提交于
Fix an error in w100fb after the platform device conversion. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Peter Osterlund 提交于
There is an old bug in the pkt_count_states() function that causes stack corruption. When compiling with gcc 3.x or 2.x it is harmless, but gcc 4 allocates local variables differently, which makes the bug visible. Signed-off-by: NPeter Osterlund <petero2@telia.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Bob Picco 提交于
It is wrong to acquire the semaphore and then return from cpuset_zone_allowed without releasing it. Signed-off-by: NBob Picco <bob.picco@hp.com> Acked-by: NPaul Jackson <pj@sgi.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Antonino A. Daplas 提交于
nvidiafb_pan_display() is incorrectly using the fields in info->var instead of var passed to the function. Signed-off-by: NAntonino Daplas <adaplas@pol.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 akpm@osdl.org 提交于
(akpm: _machine is some ppc64 thing - this is a powerpc-only driver) Signed-off-by: NSerge Hallyn <serue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Christoph Hellwig 提交于
When ptrace_attach fails we need to drop the task_struct reference. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Antonino A. Daplas 提交于
Exporting struct fb_display produces this warning error on depmod: WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_ud.ko ignored, due to loop WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_rotate.ko ignored, due to loop WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_cw.ko ignored, due to loop WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_ccw.ko ignored, due to loop WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon.ko ignored, due to loop WARNING: Loop detected: /lib/modules/2.6.14-mm2/kernel/drivers/video/console/bitblit.ko needs Signed-off-by: NAntonino Daplas <adaplas@pol.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
drivers/video/nvidia/nv_of.c:33: error: redefinition of `nvidia_probe_of_connector' drivers/video/nvidia/nv_proto.h:51: error: `nvidia_probe_of_connector' previously defined here Because the inline version depends on !CONFIG_FB_OF and the out-of-line version depends on CONFIG_PPC_OF. Ben said: "Yes, CONFIG_PPC_OF is the right one, must be a typo." Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> C: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Kumar Gala 提交于
Changed jobs and the Freescale address is no longer valid. Signed-off-by: NKumar Gala <galak@kernel.crashing.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Harald Welte 提交于
Add new Omnikey Cardman 4000 smartcard reader driver Signed-off-by: NHarald Welte <laforge@gnumonks.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Harald Welte 提交于
Add new Omnikey Cardman 4040 smartcard reader driver Signed-off-by: NHarald Welte <laforge@gnumonks.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Jeff Garzik 提交于
Since few people need the support anymore, this moves the legacy pm_xxx functions to CONFIG_PM_LEGACY, and include/linux/pm_legacy.h. Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Eric Dumazet 提交于
The file_lock spinlock sits close to mostly read fields of 'struct files_struct' In SMP (and NUMA) environments, each time a thread wants to open or close a file, it has to acquire the spinlock, thus invalidating the cache line containing this spinlock on other CPUS. So other threads doing read()/write()/... calls that use RCU to access the file table are going to ask further memory (possibly NUMA) transactions to read again this memory line. Move the spinlock to another cache line, so that concurrent threads can share the cache line containing 'count' and 'fdt' fields. It's worth up to 9% on a microbenchmark using a 4-thread 2-package x86 machine. See http://marc.theaimsgroup.com/?l=linux-kernel&m=112680448713342&w=2Signed-off-by: NEric Dumazet <dada1@cosmosbay.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Karsten Wiese 提交于
attached patch renames one instance of /sys/devices/system/timer to /sys/devices/system/timer_pit to avoid a name clash with another instance created in time.c. Acked-by: NAndi Kleen <ak@muc.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Siddha, Suresh B 提交于
Fix the x86_64 TSS limit in TSS descriptor. Signed-off-by: NSuresh Siddha <suresh.b.siddha@intel.com> Acked-by: NAndi Kleen <ak@muc.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Linus Torvalds 提交于
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由 Mark Lord 提交于
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由 Mark Lord 提交于
Fix description on comments for ata_tf_from_fis(). Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@pobox.com>
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由 Linus Torvalds 提交于
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Sean Young 提交于
CONFIG_ELAN doesn't exist any more; CONFIG_X86_ELAN is too specific so make ts-5500 memory map dependant on CONFIG_X86. Signed-off-by: NSean Young <sean@mess.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Chris Wright 提交于
Remove time_out_leases() printk that's easily triggered by users. Signed-off-by: NChris Wright <chrisw@osdl.org> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 J. Bruce Fields 提交于
The patch http://linux.bkbits.net:8080/linux-2.6/diffs/fs/locks.c@1.70??nav=index.html introduced a pretty nasty memory leak in the lease code. When freeing the lease, the code in locks_delete_lock() will correctly clean up the fasync queue, but when we return to fcntl_setlease(), the freed fasync entry will be reinstated. This patch ensures that we skip the call to fasync_helper() when we're freeing up the lease. Signed-off-by: NJ. Bruce Fields <bfields@fieldses.org> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 13 11月, 2005 11 次提交
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由 Tejun Heo 提交于
sil24_port_stop() is missing call to ata_pad_free() thus leaking pad buffer when a port is stopped. This patch adds it. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jgarzik@pobox.com>
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由 Linus Torvalds 提交于
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由 Thomas Graf 提交于
Signed-off-by: NThomas Graf <tgraf@suug.ch> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vlad Drukker 提交于
Some devices (e.g. Qlogic iSCSI HBA hardware like QLA4010 up to firmware 3.0.0.4) initiates TCP with SYN and PUSH flags set. The Linux TCP/IP stack deals fine with that, but the connection tracking code doesn't. This patch alters TCP connection tracking to accept SYN+PUSH as a valid flag combination. Signed-off-by: NVlad Drukker <vlad@storewiz.com> Signed-off-by: NHarald Welte <laforge@netfilter.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Herbert Xu 提交于
The recent change to netlink dump "done" callback handling broke IPv6 which played dirty tricks with the "done" callback. This causes an infinite loop during a dump. The following patch fixes it. This bug was reported by Jeff Garzik. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Christoph Hellwig 提交于
This patch adds a new function, sbusfb_compat_ioctl() to drivers/video/sbuslib.c and uses it as compat_ioctl in all sbus fb drivers This remove the last per-arch compat ioctl bits in arch/sparc64/kernel/ioctl32.c so it would be nice if people could test if this actually copiles and works and if yes apply it :) Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Christoph Hellwig 提交于
On Fri, Nov 11, 2005 at 12:58:40PM -0800, David S. Miller wrote: > > This change: > > diff-tree 8ca2bdc7 (from feee207e44d3643d19e648aAuthor: Christoph Hellwig <hch@lst.de> > Date: Wed Nov 9 12:07:18 2005 -0800 > > [SPARC] sbus rtc: implement ->compat_ioctl > > Signed-off-by: Christoph Hellwig <hch@lst.de> > Signed-off-by: David S. Miller <davem@davemloft.net> > > results in the console now getting spewed on sparc64 systems > with messages like: > > [ 11.968298] ioctl32(hwclock:464): Unknown cmd fd(3) cmd(401c7014){00} arg(efc > What's happening is hwclock tries first the SBUS rtc device ioctls > then the normal rtc driver ones. > > So things actually worked better when we had the SBUS rtc compat ioctl > directly handled via the generic compat ioctl code. > > There are _so_ many rtc drivers in the kernel implementing the > generic rtc ioctls that I don't think putting a ->compat_ioctl > into all of them to fix this problem is feasible. Unless we > write a single rtc_compat_ioctl(), export it to modules, and hook > it into all of those somehow. > > But even that doesn't appear to have any pretty implementation. > > Any better ideas? We had similar problems with other ioctls where userspace did things like that. What we did there was to put the compat handler to generic code. The patch below does that, adding a big comment about what's going on and removing the COMPAT_IOCTL entires for these on powerpc that not only weren't ever useful but are duplicated now aswell. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Dmitry Torokhov 提交于
Make /proc/i8k display '?' when service tag is blank in BIOS. This fixes segfault in i8k gkrellm plugin. Signed-off-by: NDmitry Torokhov <dtor@mail.ru> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Prakash Punnoor 提交于
This fixes drivers/built-in.o: In function `flexcop_frontend_init': : undefined reference to `lgdt330x_attach' [ Side note: I really dislike that dvb people want to include every possible frontend into the kernel - I only need the mt312 one for my Skystar2 card. I'd highly appreciate it this would be made selectable again... ] Signed-off-by: NPrakash Punnoor <prakash@punnoor.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Linus Torvalds 提交于
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由 Linus Torvalds 提交于
This reverts 998e6d51 commit.
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- 12 11月, 2005 2 次提交
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由 Tejun Heo 提交于
With generic dispatch queue update, implicit former/latter request handling using rq->queuelist.prev/next doesn't work as expected anymore. Also, the only iosched dependent on this feature was noop-iosched and it has been reimplemented to have its own latter/former methods. This patch removes implicit former/latter handling. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJens Axboe <axboe@suse.de>
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由 Tejun Heo 提交于
The original implementation directly used dispatch queue. As new generic dispatch queue imposes stricter rules over ioscheds and dispatch queue usage, this direct use becomes somewhat problematic. This patch reimplements noop-iosched such that it complies to generic iosched model better. Request merging with q->last_merge and rq->queuelist.prev/next work again now. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de
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