aboutsummaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2007-03-16[PATCH] i386: fix typo in sync_constant_test_bit()'s nameJeremy Fitzhardinge
Fix typo in sync_constant_test_bit()'s name, so sync_bitops.h is consistent with bitops.h Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] spi_s3c24xx.c: warning fixArnaud Patard (Rtp
The set_cs field of struct s3c24xx_spi is declared as returning a int but the value returned but set_cs is never fixed. Moreover, the default function for set_cs and the set_cs defintion in the platform data are returning void. I'm proposing to change the prototype to void (*set_cs)(...). By doing this, I'm also fixing 2 build warnings: drivers/spi/spi_s3c24xx.c: In function 's3c24xx_spi_probe': drivers/spi/spi_s3c24xx.c:330: warning: assignment from incompatible pointer type drivers/spi/spi_s3c24xx.c:335: warning: assignment from incompatible pointer type Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.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>
2007-03-16[PATCH] fix process crash caused by randomisation and 64k pagesJames Bottomley
This bug was seen on ppc64, but it could have occurred on any architecture with a page size of 64k or above. The problem is that in fs/binfmt_elf.c:randomize_stack_top() randomizes the stack to within 0x7ff pages. On 4k page machines, this is 8MB; on 64k page boxes, this is 128MB. The problem is that the new binary layout (selected in arch_pick_mmap_layout) places the mapping segment 128MB or the stack rlimit away from the top of the process memory, whichever is larger. If you chose an rlimit of less than 128MB (most defaults are in the 8Mb range) then you can end up having your entire stack randomized away. The fix is to make randomize_stack_top() only steal at most 8MB, which this patch does. However, I have to point out that even with this, your stack rlimit might not be exactly what you get if it's > 128MB, because you're still losing the random offset of up to 8MB. The true fix should be to leave an explicit gap for the randomization plus a buffer when determining mmap_base, but that would involve fixing all the architectures. Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] initialise pi_lock if CONFIG_RT_MUTEXES=NZilvinas Valinskas
Fixes a bogus lockdep warning which causes lockdep to disable itself. Acked-by: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] oom fix: prevent oom from killing a process with children/sibling ↵Ankita Garg
unkillable Looking at oom_kill.c, found that the intention to not kill the selected process if any of its children/siblings has OOM_DISABLE set, is not being met. Signed-off-by: Ankita Garg <ankita@in.ibm.com> Acked-by: Nick Piggin <npiggin@suse.de> Acked-by: William Irwin <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] change misleading EFI partition support descriptionJohannes Berg
Remove the misleading "Presently only useful on the IA-64 platform" text from the EFI partition Kconfig. EFI partitions are also used by Apple on their Intel-based machines and thus you need EFI partition support if you (for example) want to attach such a machine in target disk mode. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] futex: PI state locking fixIngo Molnar
Testing of -rt by IBM uncovered a locking bug in wake_futex_pi(): the PI state needs to be locked before we access it. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chuck Ebbert <cebbert@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] tpm_infineon: maintainerMarcel Selhorst
Signed-off-by: Marcel Selhorst <tpm@selhorst.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] Initialise SAK member for each virtual console to prevent oopsBernhard Walle
Initialise the SAK member of the vc_cons variable on all virtual terminals, not only the first one. This prevents an oops when trying Sysrq-C on e.g. the second virtual terminal: kernel BUG at kernel/workqueue.c:212! invalid opcode: 0000 [1] SMP CPU 0 Modules linked in: i915 drm deflate zlib_deflate twofish twofish_common serpent blowfish des ce Pid: 0, comm: swapper Not tainted 2.6.21-rc3-default #15 RIP: 0010:[<ffffffff8028c955>] [<ffffffff8028c955>] queue_work+0x32/0x51 RSP: 0018:ffffffff805fada8 EFLAGS: 00010013 RAX: ffffffff80683f38 RBX: ffffffff804ae700 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff80683f30 RDI: ffff81000134a840 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000002 R10: ffffffff805990e0 R11: ffff810037f4c0f0 R12: 000000000000006b R13: ffff81007aa23000 R14: 0000000000000001 R15: 0000000000000096 FS: 0000000000000000(0000) GS:ffffffff804d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00002b72026e9000 CR3: 0000000079175000 CR4: 00000000000006e0 Process swapper (pid: 0, threadinfo ffffffff8059e000, task ffffffff80490840) Stack: 0000000000000096 ffffffff803635db ffffffff805fadf8 0000000000000001 ffff8100013c2e40 0000000000000025 ffff81007c931c00 ffff81007aa23000 0000000000000001 ffffffff8035e3ee 0000000000000092 ffff810037cc8000 Call Trace: <IRQ> [<ffffffff803635db>] __handle_sysrq+0x98/0x129 [<ffffffff8035e3ee>] kbd_event+0x32e/0x56a [<ffffffff8037d502>] input_event+0x422/0x44a [<ffffffff80381d71>] atkbd_interrupt+0x449/0x503 [<ffffffff8037a42d>] serio_interrupt+0x37/0x6f [<ffffffff8037affb>] i8042_interrupt+0x1f4/0x20a [<ffffffff8026bd20>] smp_send_timer_broadcast_ipi+0x2d/0x4e [<ffffffff8020eee5>] handle_IRQ_event+0x25/0x53 [<ffffffff802a924c>] handle_edge_irq+0xe4/0x128 [<ffffffff802562ac>] call_softirq+0x1c/0x28 [<ffffffff802632eb>] do_IRQ+0x6c/0xd3 [<ffffffff8024f4e7>] mwait_idle+0x0/0x45 [<ffffffff80255631>] ret_from_intr+0x0/0xa <EOI> [<ffffffff80248a4d>] datagram_poll+0x0/0xc8 [<ffffffff8024f529>] mwait_idle+0x42/0x45 [<ffffffff80242c05>] cpu_idle+0x8b/0xae [<ffffffff805a8779>] start_kernel+0x2b9/0x2c5 [<ffffffff805a815e>] _sinittext+0x15e/0x162 Code: 0f 0b eb fe 48 8b 07 48 63 d2 48 f7 d0 48 8b 3c d0 e8 13 ff RIP [<ffffffff8028c955>] queue_work+0x32/0x51 RSP <ffffffff805fada8> Kernel panic - not syncing: Aiee, killing interrupt handler! Signed-off-by: Bernhard Walle <bwalle@suse.de> Acked-by: Eric Biederman <ebiederm@xmission.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] hwmon: Build fix for SENSORS_W83793Stefano Brivio
We need vid_which_vrm and vid_from_reg in the w83793 module. Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] nfs: nfs_getattr() can't call nfs_sync_mapping_range() for ↵Trond Myklebust
non-regular files Looks like we need a check in nfs_getattr() for a regular file. It makes no sense to call nfs_sync_mapping_range() on anything else. I think that should fix your problem: it will stop the NFS client from interfering with dirty pages on that inode's mapping. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Olof Johansson <olof@lixom.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] nfs: fix congestion controlPeter Zijlstra
The current NFS client congestion logic is severly broken, it marks the backing device congested during each nfs_writepages() call but doesn't mirror this in nfs_writepage() which makes for deadlocks. Also it implements its own waitqueue. Replace this by a more regular congestion implementation that puts a cap on the number of active writeback pages and uses the bdi congestion waitqueue. Also always use an interruptible wait since it makes sense to be able to SIGKILL the process even for mounts without 'intr'. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] fix rescan_partitions to return errors properlysuzuki
The only error code which comes from the partition checkers is -1, when they finds an EIO. As per the discussion, ENOMEM values were ignored, as they might scare the users. So, with the current code, we end up returning -1 and not EIO for the ioctl() calls. Which doesn't give any clue to the user of what went wrong. Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] swsusp: fix suspend when console is in VT_AUTO+KD_GRAPHICS modeAndrew Johnson
When the console is in VT_AUTO+KD_GRAPHICS mode, switching to the SUSPEND_CONSOLE fails, resulting in vt_waitactive() waiting indefinitely or until the task is interrupted. This patch tests if a console switch can occur in set_console() and returns early if a console switch is not possible. [akpm@linux-foundation.org: cleanup] Signed-off-by: Andrew Johnson <ajohnson@intrinsyc.com> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] smbfs: double free memory corruptionVasily Averin
smbfs allocates rq_trans2buffer to handle server's multi transaction2 response messages. As struct smb_request may be reused, rq_trans2buffer is freed before each new request. However if last servers's response is not multi but single trans2 message then new rq_trans2buffer is not allocated but last smb_rput still tries to free it again. To prevent this issue rq_trans2buffer pointer should be set to NULL after kfree. Signed-off-by: Vasily Averin <vvs@sw.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] bool fbdevs must depend on FB = yGeert Uytterhoeven
Frame buffer device drivers that cannot be built as modules must depend on `FB = y'. Correct the 3 remaining offenders. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] eCryptfs: fix possible NULL ptr deref in ecryptfs_d_release()Michael Halcrow
ecryptfs_d_release() first dereferences a pointer (via ecryptfs_dentry_to_lower()) and then afterwards checks to see if the pointer it just dereferenced is NULL (via ecryptfs_dentry_to_private()). This patch moves all of the work done on the dereferenced pointer inside a block governed by the condition that the pointer is non-NULL. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] hrtimer: fix up unlocked access to wall_to_monotonicThomas Gleixner
commit f4304ab21513b834c8fe3403927c60c2b81a72d7 (HZ free NTP) moved the access to wall_to_monotonic in hrtimer_get_softirq_time() out of the xtime_lock protection. Move it back into the seq_lock section. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] SPI: at25: do not use pointer before assignmentAtsushi Nemoto
Prevents a potential oops with CONFIG_SPI_DEBUG given flakey hardware or incorrect configuration. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> 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>
2007-03-16[PATCH] hrtimer: prevent overrun DoS in hrtimer_forward()Thomas Gleixner
hrtimer_forward() does not check for the possible overflow of timer->expires. This can happen on 64 bit machines with large interval values and results currently in an endless loop in the softirq because the expiry value becomes negative and therefor the timer is expired all the time. Check for this condition and set the expiry value to the max. expiry time in the future. The fix should be applied to stable kernel series as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] savagefb: Fix compile error if debugging is enabledAntonino A. Daplas
SavagePrintRegs() requires struct savagefb_par. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] savagefb: Fix black screen on load in Savage IXAntonino A. Daplas
This is a hack that seems to kick start the 2D engine of the Savage IX in some Toshiba laptops. Without this, the laptop starts with a black screen and occasionally crashes X. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] sstfb: fix pixclock setting on Voodoo 1/2 cardsOndrej Zajicek
Pixclock setting in sstfb didn't work with my Voodoo 2 card with ICS 5342 DAC (this DAC requires two consecutive writes to one of its registers to program pixclock - maybe first write merged with second). Signed-off-by: Ondrej Zajicek <santiago@crfreenet.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] gpio_direction_output() needs an initial valueDavid Brownell
It's been pointed out that output GPIOs should have an initial value, to avoid signal glitching ... among other things, it can be some time before a driver is ready. This patch corrects that oversight, fixing - documentation - platforms supporting the GPIO interface - users of that call (just one for now, others are pending) There's only one user of this call for now since most platforms are still using non-generic GPIO setup code, which in most cases already couples the initial value with its "set output mode" request. Note that most platforms are clear about the hardware letting the output value be set before the pin direction is changed, but the s3c241x docs are vague on that topic ... so those chips might not avoid the glitches. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Andrew Victor <andrew@sanpeople.com> Acked-by: Milan Svoboda <msvoboda@ra.rockwell.com> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] spi: destroy workqueue after spi_unregister_masterChris Lesiak
Fix a bug in the cleanup of an spi_bitbang bus. The workqueue associated with the bus was destroyed before the call to spi_unregister_master. That meant that spi devices on that bus would be unable to do IO in their remove method. The shutdown flag should have been able to prevent a segfault, but was never getting set. By waiting to destroy the workqueue until after the master is unregistered, devices are able to do IO in their remove methods. An added benefit is that neither the shutdown flag nor a wait for the queue of messages to empty is needed. Signed-off-by: Chris Lesiak <chris.lesiak@licor.com> 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>
2007-03-16[PATCH] dio: invalidate clean pages before dio writeZach Brown
This patch fixes a user-triggerable oops that was reported by Leonid Ananiev as archived at http://lkml.org/lkml/2007/2/8/337. dio writes invalidate clean pages that intersect the written region so that subsequent buffered reads go to disk to read the new data. If this fails the interface tries to tell the caller that the cache is inconsistent by returning EIO. Before this patch we had the problem where this invalidation failure would clobber -EIOCBQUEUED as it made its way from fs/direct-io.c to fs/aio.c. Both fs/aio.c and bio completion call aio_complete() and we reference freed memory, usually oopsing. This patch addresses this problem by invalidating before the write so that we can cleanly return -EIO before ->direct_IO() has had a chance to return -EIOCBQUEUED. There is a compromise here. During the dio write we can fault in mmap()ed pages which intersect the written range with get_user_pages() if the user provided them for the source buffer. This is a crazy thing to do, but we can make it mostly work in most cases by trying the invalidation again. The compromise is that we won't return an error if this second invalidation fails if it's an AIO write and we have -EIOCBQUEUED. This was tested by having two processes race performing large O_DIRECT and buffered ordered writes. Within minutes ext3 would see a race between ext3_releasepage() and jbd holding a reference on ordered data buffers and would cause invalidation to fail, panicing the box. The test can be found in the 'aio_dio_bugs' test group in test.kernel.org/autotest. After this patch the test passes. Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Cc: Leonid Ananiev <leonid.i.ananiev@linux.intel.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] mm: fix madvise infinine loopNick Piggin
madvise(MADV_REMOVE) can go into an infinite loop or cause an oops if the call covers a region from the start of a vma, and extending past that vma. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Badari Pulavarty <pbadari@us.ibm.com> Acked-by: Hugh Dickins <hugh@veritas.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] ufs2: tindirect truncate fixEvgeniy Dushistov
During modification of code to support UFS2 writing, the case with "three indirect" blocks in truncate path was missed, this patch fixes this situation. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] ufs: zeroize the rest of block in truncateEvgeniy Dushistov
This patch fix behaviour in such test scenario: lseek(fd, BIG_OFFSET) write(fd, buf, sizeof(buf)) truncate(BIG_OFFSET) truncate(BIG_OFFSET + sizeof(buf)) read(fd, buf...) Because of if file big enough(BIG_OFFSET) we start allocate space by block, ordinary block size > page size, so we should zeroize the rest of block in truncate(except last framgnet, about which VFS should care), to not get garbage, when we extend file. Also patch corrects conversion from pointer to block to physical block number, this helps in case of not common used UFS types. And add to debug output inode number. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] ufs: prepare write + change blocks on the flyEvgeniy Dushistov
This fixes "change blocks numbers on the fly" in case when "prepare write page" is in the call chain, in this case some buffers may be not uptodate and not mapped, we should care to map them and load from disk. This patch was tested with: - ufs regressions simple tests - fsx-linux - ltp(20060306) - untar and build kernel Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] ufs2: more correct work with timeEvgeniy Dushistov
This patch corrects work with time in UFS2 case. 1) According to UFS2 disk layout modification/access and so on "time" should be hold in two variables one 64bit for seconds and another 32bit for nanoseconds, at now for some unknown reason we suppose that "inode time" holds in three variables 32bit for seconds, 32bit for milliseconds and 32bit for nanoseconds. 2) We set amount of nanoseconds in "VFS inode" to 0 during read, instead of getting values from "on disk inode"(this should close http://bugzilla.kernel.org/show_bug.cgi?id=7991). Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Cc: Bjoern Jacke <bjoern@j3e.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] swsusp: disable nonboot CPUs before entering platform suspendRafael J. Wysocki
Prevent the WARN_ON() in arch/x86_64/kernel/acpi/sleep.c:init_low_mapping() from triggering by disabling nonboot CPUs before we finally enter the platform suspend. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] swsusp: Fix resume error path in platform modeRafael J. Wysocki
If swsusp is using the platform mode during the resume and the image cannot be read, the platform mode should be switched off before software_resume() returns. Make it happen. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] rm pointless dmaengine exportsDavid Brownell
This removes several pointless exports from drivers/dma/dmaengine.c; the dma_async_memcpy_*() functions are inlined by <linux/dmaengine.h> so those exports are inappropriate. It also moves the existing EXPORT_SYMBOL declarations next to their functions, so it's now trivial to confirm one-to-one correspondence between exports and nonstatic symbols. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] fix read past end of array in md/linear.cAndy Isaacson
When iterating through an array, one must be careful to test one's index variable rather than another similarly-named variable. The loop will read off the end of conf->disks[] in the following (pathological) case: % dd bs=1 seek=840716287 if=/dev/zero of=d1 count=1 % for i in 2 3 4; do dd if=/dev/zero of=d$i bs=1k count=$(($i+150)); done % ./vmlinux ubd0=root ubd1=d1 ubd2=d2 ubd3=d3 ubd4=d4 # mdadm -C /dev/md0 --level=linear --raid-devices=4 /dev/ubd[1234] adding some printks, I saw this: [42949374.960000] hash_spacing = 821120 [42949374.960000] cnt = 4 [42949374.960000] min_spacing = 801 [42949374.960000] j=0 size=820928 sz=820928 [42949374.960000] i=0 sz=820928 hash_spacing=820928 [42949374.960000] j=1 size=64 sz=64 [42949374.960000] j=2 size=64 sz=128 [42949374.960000] j=3 size=64 sz=192 [42949374.960000] j=4 size=1515870810 sz=1515871002 Cc: Gautham R Shenoy <ego@in.ibm.com> Acked-by: Neil Brown <neilb@cse.unsw.edu.au> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] reduce pnp syslog spamDavid Brownell
Make some normal code paths in PNP stop issuing syslog spam. Since PNP issues calls regardless of device capablities, it's no surprise when some of those devices don't support those calls! Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15Linux 2.6.21-rc4Linus Torvalds
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: natsemi: Avoid IntrStatus lossage if RX state machine resets. natsemi: Fix NAPI for interrupt sharing natsemi: Consistently use interrupt enable/disable functions NetXen: Fix softlockup seen during hardware access NetXen: Bug fix for Jumbo frames on XG card skge: set mac address bonding fix
2007-03-15[PATCH] sysfs: reinstate exclusion between method calls and attribute ↵Alan Stern
unregistration This patch (as869) reinstates the mutual exclusion between sysfs attribute method calls and attribute unregistration. The previously-reported deadlocks have been fixed, and this exclusion is by far the simplest way to avoid races during driver unbinding. The check for orphaned read-buffers has been moved down slightly, so that the remainder of a partially-read buffer will still be available to userspace even after the attribute has been unregistered. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15[PATCH] sysfs and driver core: add callback helper, used by SCSI and S390Alan Stern
This patch (as868) adds a helper routine for device drivers that need to set up a callback to perform some action in a different process's context. This is intended for use by attribute methods that want to unregister themselves or their parent device. Attribute method calls are mutually exclusive with unregistration, so such actions cannot be taken directly. Two attribute methods are converted to use the new helper routine: one for SCSI device deletion and one for System/390 ccwgroup devices. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15Merge branch 'for-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid: HID: zeroing of bytes in output fields is bogus HID: allocate hid_parser in a proper way
2007-03-15natsemi: Avoid IntrStatus lossage if RX state machine resets.broonie@sirena.org.uk
This patch fixes the poll routine for the natsemi driver so that if the driver detects an RX state machine lockup then no interrupts will be lost while the driver recovers from that. Signed-Off-By: Mark Brown <broonie@sirena.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15natsemi: Fix NAPI for interrupt sharingbroonie@sirena.org.uk
The interrupt status register for the natsemi chips is clear on read and was read unconditionally from both the interrupt and from the NAPI poll routine, meaning that if the interrupt service routine was called (for example, due to a shared interrupt) while a NAPI poll was scheduled interrupts could be missed. This patch fixes that by ensuring that the interrupt status register is only read by the interrupt handler when interrupts are enabled from the chip. It also reverts a workaround for this problem from the netpoll hook and improves the trace for interrupt events. Thanks to Sergei Shtylyov <sshtylyov@ru.mvista.com> for spotting the issue, Mark Huth <mhuth@mvista.com> for a simpler method and Simon Blake <simon@citylink.co.nz> for testing resources. Signed-Off-By: Mark Brown <broonie@sirena.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15natsemi: Consistently use interrupt enable/disable functionsbroonie@sirena.org.uk
The natsemi drivers include functions for enabling and disabling interrupts from the chip but these are not used in all code paths. This patch changes the code paths that touch the interrupt enable register to use the functions. In all cases this adds an extra PCI read to post the operation but since none of these are in fast paths this shouldn't be too much of a problem. Signed-Off-By: Mark Brown <broonie@sirena.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15NetXen: Fix softlockup seen during hardware accessLinsys Contractor Mithlesh Thukral
NetXen: This will fix a softlock seen on some machines. The reason was too much time was spent waiting for hardware access to go through. Signed-off by: Mithlesh Thukral <mithlesh@netxen.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15NetXen: Bug fix for Jumbo frames on XG cardLinsys Contractor Mithlesh Thukral
NetXen: Set the MTU for the right port depending upon the port number for XG cards. Signed-off by: Mithlesh Thukral <mithlesh@netxen.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15skge: set mac address bonding fixStephen Hemminger
When bonding does fail over it calls set_mac_address. When this happens as the result of another port going down, the phy_mutex that is common to both ports is held, so it deadlocks. Setting the address doesn't need to do anything that needs the phy_mutex, it already has the RTNL to protect against other admin actions. This change just disables the receiver to avoid any hardware confusion while address is changing. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-14Disable NMI watchdog by default properlyLinus Torvalds
This reverts commit 6ebf622b2577c50b1f496bd6a5e8739e55ae7b1c and replaces it with one that actually works. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2_dlm: Add missing locks in dlm_empty_lockres ocfs2_dlm: Missing get/put lockres in dlm_run_purge_lockres configfs: add missing mutex_unlock() ocfs2: add some missing address space callbacks ocfs2: Concurrent access of o2hb_region->hr_task was not locked ocfs2: Proper cleanup in case of error in ocfs2_register_hb_callbacks()
2007-03-14Merge master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] i8xx TCO driver - mark for removal