- 30 9月, 2008 2 次提交
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由 Herbert Xu 提交于
We're never supposed to shrink the headroom or tailroom. In fact, shrinking the headroom is a fatal action. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Linus Torvalds 提交于
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- 29 9月, 2008 18 次提交
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由 Balbir Singh 提交于
There's a race between mm->owner assignment and swapoff, more easily seen when task slab poisoning is turned on. The condition occurs when try_to_unuse() runs in parallel with an exiting task. A similar race can occur with callers of get_task_mm(), such as /proc/<pid>/<mmstats> or ptrace or page migration. CPU0 CPU1 try_to_unuse looks at mm = task0->mm increments mm->mm_users task 0 exits mm->owner needs to be updated, but no new owner is found (mm_users > 1, but no other task has task->mm = task0->mm) mm_update_next_owner() leaves mmput(mm) decrements mm->mm_users task0 freed dereferencing mm->owner fails The fix is to notify the subsystem via mm_owner_changed callback(), if no new owner is found, by specifying the new task as NULL. Jiri Slaby: mm->owner was set to NULL prior to calling cgroup_mm_owner_callbacks(), but must be set after that, so as not to pass NULL as old owner causing oops. Daisuke Nishimura: mm_update_next_owner() may set mm->owner to NULL, but mem_cgroup_from_task() and its callers need to take account of this situation to avoid oops. Hugh Dickins: Lockdep warning and hang below exec_mmap() when testing these patches. exit_mm() up_reads mmap_sem before calling mm_update_next_owner(), so exec_mmap() now needs to do the same. And with that repositioning, there's now no point in mm_need_new_owner() allowing for NULL mm. Reported-by: NHugh Dickins <hugh@veritas.com> Signed-off-by: NBalbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Signed-off-by: NDaisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: NHugh Dickins <hugh@veritas.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Paul Menage <menage@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 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: x86: disable apm on the olpc
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: cdrom: update ioctl documentation ide: note that IDE generic may prevent other drivers from attaching ide-tape: fix vendor strings Swarm: Fix crash due to missing initialization
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git://ftp.linux-mips.org/pub/scm/upstream-linus由 Linus Torvalds 提交于
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [SSB] Initialise dma_mask for SSB_BUSTYPE_SSB devices [MIPS] BCM47xx: Fix build error due to missing PCI functions [MIPS] IP27: Switch to dynamic interrupt routing avoding panic on error. [MIPS] au1000: Make sure GPIO value is zero or one
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git://www.linux-m32r.org/git/takata/linux-2.6_dev由 Linus Torvalds 提交于
* 'linux-m32r' of git://www.linux-m32r.org/git/takata/linux-2.6_dev: m32r/kernel/: cleanups m32r: export __ndelay m32r: export empty_zero_page m32r: don't offer CONFIG_ISA m32r: remove the unused NOHIGHMEM option
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git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb由 Linus Torvalds 提交于
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kgdboc,tty: Fix tty polling search to use name correctly kgdb, x86_64: fix PS CS SS registers in gdb serial kgdb, x86_64: gdb serial has BX and DX reversed kgdb, x86, arm, mips, powerpc: ignore user space single stepping kgdb: could not write to the last of valid memory with kgdb
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: ASoC: Fix another cs4270 error path ALSA: make the CS4270 driver a new-style I2C driver
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] qlogicpti: fix sg list traversal error in continuation entries [SCSI] Fix hang with split requests [SCSI] qla2xxx: Defer enablement of RISC interrupts until ISP initialization completes.
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: scsi: fix fall out of sg-chaining patch in qlogicpti
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev由 Linus Torvalds 提交于
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: sata_nv: reinstate nv_hardreset() for non generic controllers
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由 zippel@linux-m68k.org 提交于
Commit f072181e ("kconfig: drop the ""trying to assign nonexistent symbol" warning") simply dropped the warnings, but it does a little more than that, it also marks the current .config as needed saving, so add this back. Signed-off-by: NRoman Zippel <zippel@linux-m68k.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 zippel@linux-m68k.org 提交于
Recent changes to oldconfig have mixed up the silentoldconfig handling, so this fixes that by clearly separating that special mode, e.g. KCONFIG_NOSILENTUPDATE is only relevant here, the .config is written as needed. This will also properly close Bug 11230. Signed-off-by: NRoman Zippel <zippel@linux-m68k.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
The VFS interface for the 'd_compare()' is a bit special (read: 'odd'), because it really just essentially replaces a memcmp(). The filesystem is supposed to just compare the two names with whatever case-independent or other function. And when I say 'is supposed to', I obviously mean that 'procfs does odd things, and actually looks at the dentry that we don't even pass down, rather than just the name'. Which results in problems, because we actually call d_compare before we have even verified that the dentry is still hashed at all. And that causes a problm since the inode that procfs looks at may have been free'd and the d_inode pointer is NULL. procfs just assumes that all dentries are positive, since procfs itself never generates a negative one. But memory pressure will still result in the dentry getting torn down, and as it is removed by RCU, it still remains visible on some lists - and to d_compare. If the filesystem just did a name comparison, we wouldn't care. And we could just fix procfs to know about negative dentries too. But rather than have the low-level filesystems know about internal VFS details, just move the check for a unhashed dentry up a bit, so that we will only call d_compare on dentries that are still active. The actual oops this caused didn't look like a NULL pointer dereference because procfs did a 'container_of(inode, struct proc_inode, vfs_inode)' to get at its internal proc_inode information from the inode pointer, and accessed a field below the inode. So the oops would look something like BUG: unable to handle kernel paging request at fffffffffffffff0 IP: [<ffffffff802bc6c6>] proc_sys_compare+0x36/0x50 and was seen on both x86-64 (Alexey Dobriyan and Hugh Dickins) and ppc64 (Hugh Dickins). Reported-by: NAlexey Dobriyan <adobriyan@gmail.com> Acked-by: NHugh Dickins <hugh@veritas.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Reviewed-by: N"Eric W. Biederman" <ebiederm@xmission.com> Signed-of-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jean Delvare 提交于
Conversion to new-style i2c driver missed the error path of the probe function. Fix it. Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: Timur Tabi <timur@freescale.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Timur Tabi 提交于
Update the CS4270 ALSA device driver to use the new-style I2C interface. Starting with the 2.6.27 PowerPC kernel, I2C devices that have entries in the device trees can no longer be probed by old-style I2C drivers. The device tree for Freescale MPC8610 HPCD has included an entry for the CS4270 since 2.6.25, but that entry was previously ignored by the PowerPC I2C subsystem. Since that's no longer the case, the best solution is to update the CS4270 driver to a new-style interface, rather than try to revert the behavior of new PowerPC I2C subsystem. Signed-off-by: NTimur Tabi <timur@freescale.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Boaz Harrosh 提交于
Boaz writes: "I've reviewed all patches since Matthew's, and I find one small problem. In the load_cmd() there is a compound loop where the first 4 sg's are set then the rest are set into a memory structure in group of 7 sg's. Well the second 7-group and on is a bug because sg pointer does not advance. This is a fall out from Jens's patch." The reporter, Meelis Roos <mroos@ut.ee>, verified that this patch does indeed fix his problem with qlogicpti. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Tejun Heo 提交于
Commit 2fd673ec which tried to remove hardreset for generic accidentally removed it for all flavors as all others were inheriting from nv_generic_ops. This patch reinstates nv_hardreset() and puts it into nv_common_ops which all flavors inherit from. nv_generic_ops now inherits from nv_common_ops and overrides .hardreset to ATA_OP_NULL. While at it, explain why nv_hardreset and ATA_OP_NULL override are necessary. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Boaz Harrosh 提交于
The current sg list traversal logic for the continuation entries doesn't advance the list pointer once all seven slots are used, so the next continuation entry (if there is one) wrongly begins again at the start of the sg list. Fix by advancing the sg pointer after the for_each_sg(). Reported-by: NMeelis Roos <mroos@ut.ee> Cc: David Miller <davem@davemloft.net> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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- 28 9月, 2008 4 次提交
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由 Márton Németh 提交于
Correct copy-paste problem: CDROMCLOSETRAY is about closing the tray, not opening it. Signed-off-by: NMárton Németh <nm127@freemail.hu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Tejun Heo 提交于
Enabling IDE generic may prevent ATA controllers located on legacy ports from being attached to more proper driver or can prevent other controllers which share the IRQ from working. Note it in the help message. Signed-off-by: NTejun Heo <tj@kernel.org> Cc: xerces8 <xerces8@butn.net> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: stein@hermes.si [bart: s/will grab/may grab/ since Borislav has fixed PCI-case for .28] Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Borislav Petkov 提交于
Remove superfluous two bytes from each string buffer and add proper length format specifiers. Signed-off-by: NBorislav Petkov <petkovbb@gmail.com> Tested-by: NMark de Wever <koraq@xs4all.nl> Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Ralf Baechle 提交于
If things are just right this will result in the hws[0]->parent being passed to ide_host_add() being non-zero and an ooops a little later. Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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- 27 9月, 2008 10 次提交
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由 Aurelien Jarno 提交于
For SSB_BUSTYPE_SSB type devices, we need to initialize dma_mask using coherent_dma_mask so that calls to dma_set_mask() succeed. It fixes the regression on the b44 driver introduced by commit f225763aSigned-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Aurelien Jarno 提交于
This patch defines pcibios_map_irq() and pcibios_plat_dev_init() for the BCM47xx platform. It fixes the regression introduced by commit aab547ce. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
pcibios_map_irq is no way of returning an error but on IP27 an interrupt is possibly not routable when running out of resources. So do the interrupt routing at pcibios_enable_device time. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Bruno Randolf 提交于
David Brownell <david-b@pacbell.net> wrote: > The problem is that "value" is zero-or-nonzero. > This code wrongly assumes it's zero-or-one. > Possible fix: "((!!value) << gpio)". Signed-off-by: NBruno Randolf <br1@einfach.org> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Adrian Bunk 提交于
This patch contains the following cleanups: - make the following needlessly global code static: - entry.S: resume_userspace - process.c: pm_idle - process.c: default_idle() - smp.c: send_IPI_allbutself() - time.c: timer_interrupt() - time.c: struct irq0 - traps.c: set_eit_vector_entries() - traps.c: kstack_depth_to_print - traps.c: show_trace() - traps.c: die_lock - remove the following unused code: - head.S: startup_32 - process.c: hlt_counter - process.c: disable_hlt() - process.c: enable_hlt() - process.c: dump_task_regs() - remove the following variables and their usages since they were always 0: - irq.c: irq_err_count - irq.c: irq_mis_count Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NHirokazu Takata <takata@linux-m32r.org>
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由 Adrian Bunk 提交于
ERROR: "__ndelay" [drivers/spi/spi_bitbang.ko] undefined! Reported-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NHirokazu Takata <takata@linux-m32r.org>
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由 Adrian Bunk 提交于
ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined! Reported-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NHirokazu Takata <takata@linux-m32r.org>
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由 Adrian Bunk 提交于
As far as I know no M32R hardware actually has ISA slots. And ISA drivers don't compile on M32R. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NHirokazu Takata <takata@linux-m32r.org>
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由 Adrian Bunk 提交于
Remove the unused NOHIGHMEM option. Reviewed-by: NRobert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NHirokazu Takata <takata@linux-m32r.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: remove unneeded power_mutex lock in snd_pcm_drop ALSA: fix locking in snd_pcm_open*() and snd_rawmidi_open*()
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- 26 9月, 2008 6 次提交
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git://oss.sgi.com:8090/xfs/linux-2.6由 Linus Torvalds 提交于
* git://oss.sgi.com:8090/xfs/linux-2.6: [XFS] Remove xfs_iext_irec_compact_full() [XFS] Fix extent list corruption in xfs_iext_irec_compact_full().
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由 David Howells 提交于
Delete ARM's own cnt32_to_63.h as the copy in include/linux/ should now be used instead. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jason Wessel 提交于
The tty_find_polling_driver() routine did not correctly check the base part of the tty name. This can lead to kgdboc selecting an incorrect driver, as well as accepting a completely invalid tty such as "echo ffff0 > /sys/module/kgdboc/parameters/kgdboc". Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
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由 Jason Wessel 提交于
On x86_64 the gdb serial register structure defines the PS (also known as eflags), CS and SS registers as 4 bytes entities. This patch splits the x86_64 regnames enum into a 32 and 64 version to account for the 32 bit entities in the gdb serial packets. Also the program counter is properly filled in for the sleeping threads. Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
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由 Jason Wessel 提交于
The BX and DX registers in the gdb serial register packet need to be flipped for gdb to receive the correct data. Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
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由 Jason Wessel 提交于
On the x86 arch, user space single step exceptions should be ignored if they occur in the kernel space, such as ptrace stepping through a system call. First check if it is kgdb that is executing a single step, then ensure it is not an accidental traversal into the user space, while in kgdb, any other time the TIF_SINGLESTEP is set, kgdb should ignore the exception. On x86, arm, mips and powerpc, the kgdb_contthread usage was inconsistent with the way single stepping is implemented in the kgdb core. The arch specific stub should always set the kgdb_cpu_doing_single_step correctly if it is single stepping. This allows kgdb to correctly process an instruction steps if ptrace happens to be requesting an instruction step over a system call. Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
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