- 02 Dec, 2008 40 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: alim15x3: fix sparse warning ide: remove dead code from drive_is_ready() ide: fix build for DEBUG_PM ide: respect current DMA setting during resume ide: add SAMSUNG SP0822N with firmware WA100-10 to ivb_list[] amd74xx: workaround unreliable AltStatus register for nVidia controllers ide: fix the ide_release_lock imbalance
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] stex: switch to block timeout [SCSI] make scsi_eh_try_stu use block timeout [SCSI] megaraid_sas: switch to block timeout [SCSI] ibmvscsi: switch to block timeout [SCSI] aacraid: switch to block timeout [SCSI] zfcp: prevent double decrement on host_busy while being busy [SCSI] zfcp: fix deadlock between wq triggered port scan and ERP [SCSI] zfcp: eliminate race between validation and locking [SCSI] zfcp: verify for correct rport state before scanning for SCSI devs [SCSI] zfcp: returning an ERR_PTR where a NULL value is expected [SCSI] zfcp: Fix opening of wka ports [SCSI] zfcp: fix remote port status check [SCSI] fc_transport: fix old bug on bitflag definitions [SCSI] Fix hang in starved list processing
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Mark Salter authored
This fixes the MN10300 kernel module linking to match the toolchain. RELA relocs don't use the value at the location being relocated. This has been working because the tools always leave the value at the target location cleared. Signed-off-by:
Mark Salter <msalter@redhat.com> Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Dean Nelson authored
If xpc.ko and gru.ko are both statically linked into the kernel, then xpc_init() can get called before gru_init() and make a call to one of the gru's exported functions before the gru has initialized itself. The end result is a NULL dereference. Signed-off-by:
Dean Nelson <dcn@sgi.com> Signed-off-by:
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Kumar Gala authored
In the CONFIG_SMP case the irq_choose_cpu() code was returning back a logical cpu id not the physical id. We were writing that directly into the HW register. We need to be calling get_hard_smp_processor_id() so irq_choose_cpu() always returns a physical cpu id. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Rik van Riel authored
Count the insertion of new pages in the statistics used to drive the pageout scanning code. This should help the kernel quickly evict streaming file IO. We count on the fact that new file pages start on the inactive file LRU and new anonymous pages start on the active anon list. This means streaming file IO will increment the recent scanned file statistic, while leaving the recent rotated file statistic alone, driving pageout scanning to the file LRUs. Pageout activity does its own list manipulation. Signed-off-by:
Rik van Riel <riel@redhat.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Tested-by:
Gene Heskett <gene.heskett@gmail.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Kay Sievers authored
Devices which share the same queue, like floppies and mtd devices, get registered multiple times in the bdi interface, but bdi accounts only the last registered device of the devices sharing one queue. On remove, all earlier registered devices leak, stay around in sysfs, and cause "duplicate filename" errors if the devices are re-created. This prevents the creation of multiple bdi interfaces per queue, and the bdi device will carry the dev_t name of the block device which is the first one registered, of the pool of devices using the same queue. [akpm@linux-foundation.org: add a WARN_ON so we know which drivers are misbehaving] Tested-by:
Peter Korsgaard <jacmet@sunsite.dk> Acked-by:
Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by:
Kay Sievers <kay.sievers@vrfy.org> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Junjiro R. Okajima authored
The previous patch from Alan Cox ("nfsd: fix vm overcommit crash", commit 731572d3) fixed the problem where knfsd crashes on exported shmemfs objects and strict overcommit is set. But the patch forgot supporting the case when CONFIG_SECURITY is disabled. This patch copies a part of his fix which is mainly for detecting a bug earlier. Acked-by:James Morris <jmorris@namei.org> Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
Junjiro R. Okajima <hooanon05@yahoo.co.jp> Signed-off-by:
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Hannes Eder authored
Fix this sparse warning: drivers/ide/alim15x3.c:594:2: warning: returning void-valued expression Signed-off-by:
Hannes Eder <hannes@hanneseder.net> Signed-off-by:
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Bartlomiej Zolnierkiewicz authored
We guarantee 400ns delay at the time of issuing the command. Acked-by:
Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
Also while at it: * Drop unused arguments from ide_complete_power_step(). * Move DEBUG_PM printk() from ide_end_drive_cmd() to ide_complete_power_step(). Signed-off-by: -
Bartlomiej Zolnierkiewicz authored
Respect current DMA setting during resume, otherwise PIO timings may get destroyed if host uses shared PIO/MWDMA timings. Signed-off-by: -
Bartlomiej Zolnierkiewicz authored
Should fix kernel.org bug #10225: http://bugzilla.kernel.org/show_bug.cgi?id=10225Reported-by:
Matthias B. <haferfrost@web.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by:
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Bartlomiej Zolnierkiewicz authored
It seems that on some nVidia controllers using AltStatus register can be unreliable so default to Status register if the PCI device is in Compatibility Mode. In order to achieve this: * Add ide_pci_is_in_compatibility_mode() inline helper to <linux/ide.h>. * Add IDE_HFLAG_BROKEN_ALTSTATUS host flag and set it in amd74xx host driver for nVidia controllers in Compatibility Mode. * Teach actual_try_to_identify() and drive_is_ready() about the new flag. This fixes the regression caused by removal of CONFIG_IDEPCI_SHARE_IRQ config option in 2.6.25 and using AltStatus register unconditionally when available (kernel.org bugs #11659 and #10216). [ Moreover for CONFIG_IDEPCI_SHARE_IRQ=y (which is what most people and distributions use) it never worked correctly. ] Thanks to Remy LABENE and Lars Winterfeld for help with debugging the problem. More info at: http://bugzilla.kernel.org/show_bug.cgi?id=11659 http://bugzilla.kernel.org/show_bug.cgi?id=10216Reported-by:
Remy LABENE <remy.labene@free.fr> Tested-by:
Lars Winterfeld <lars.winterfeld@tu-ilmenau.de> Acked-by:
Borislav Petkov <petkovbb@gmail.com> Signed-off-by:
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Michael Schmitz authored
ide_release_lock() spits out lots of: ide_release_lock: bug warnings on Atari Falcon. Fix the ide_release_lock imbalance. Signed-off-by:
Michael Schmitz <schmitz@biophys.uni-duesseldorf.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6Linus Torvalds authored
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (25 commits) em28xx: remove backward compat macro added on a previous fix V4L/DVB (9748): em28xx: fix compile warning V4L/DVB (9743): em28xx: fix oops audio V4L/DVB (9742): em28xx-alsa: implement another locking schema V4L/DVB (9732): sms1xxx: use new firmware for Hauppauge WinTV MiniStick V4L/DVB (9691): gspca: Move the video device to a separate area. V4L/DVB (9690): gspca: Lock the subdrivers via module_get/put. V4L/DVB (9689): gspca: Memory leak when disconnect while streaming. V4L/DVB (9668): em28xx: fix a race condition with hald V4L/DVB (9664): af9015: don't reconnect device in USB-bus V4L/DVB (9647): em28xx: void having two concurrent control URB's V4L/DVB (9646): em28xx: avoid allocating/dealocating memory on every control urb V4L/DVB (9645): em28xx: Avoid memory leaks if registration fails V4L/DVB (9639): Make dib0700 remote control support work with firmware v1.20 V4L/DVB (9635): v4l: s2255drv fix firmware test on big-endian V4L/DVB (9634): Make sure the i2c gate is open before powering down tuner V4L/DVB (9632): make em28xx aux audio input work V4L/DVB (9631): Make s2api work for ATSC support V4L/DVB (9627): em28xx: Avoid i2c register error for boards without eeprom V4L/DVB (9608): Fix section mismatch warning for dm1105 during make ...
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Andrew Morton authored
drivers/gpu/drm/i915/i915_irq.c: In function 'i915_disable_pipestat': drivers/gpu/drm/i915/i915_irq.c:101: warning: control may reach end of non-void function 'i915_pipestat' being inlined Cc: Dave Airlie <airlied@linux.ie> Signed-off-by:
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Jarkko Lavinen authored
Fix module removal bugs of i82875p_edac. Also i82975x_edac code seems to have the same module removal bugs as in i82875p_edac. The problems were: 1. In module removal i82875p_remove_one() is never called. Variable i82875p_registered is newer changed from 1, which guarantees i82875p_remove_one() is not called (and even if it were called, it would be called in wrong order). As a result, the edac_mc workque is not stopped and keeps probing. If kernel debugging options are not enabled, user may not notice anything going wrong. if debugging options are enabled and I do "rmmod i82875p_edac", I get: edac debug: edac_pci_workq_function() checking BUG: unable to handle kernel paging request at f882d16f ... call trace: [<f8834df3>] ? edac_mc_workq_function+0x55/0x7e [edac_core] [<c0233974>] ? run_workqueue+0xd7/0x1a5 [<c023392f>] ? run_workqueue+0x92/0x1a5 [<f8834d9e>] ? edac_mc_workq_function+0x0/0x7e [edac_core] [<c0233af9>] ? worker_thread+0xb7/0xc3 [<c0236a7b>] ? autoremove_wake_function+0x0/0x33 [<c0233a42>] ? worker_thread+0x0/0xc3 [<c0236809>] ? kthread+0x3b/0x61 [<c02367ce>] ? kthread+0x0/0x61 [<c0204587>] ? kernel_thread_helper+0x7/0x10 Fix for this is to get rid of needles variable i82875p_registered altogether and run i82875p_remove_one() *before* pci_unregister_driver(). 2. edac_mc_del_mc() uses mci after freeing mci edac_mc_del_mc() calls calls edac_remove_sysfs_mci_device(). The kobject refcount of mci drops to 0 and mci is freed. After this mci is accessed via debug print and i82875p_remove_one() still uses mci->pvt and tries to free mci again with edac_mc_free(). The fix for this is add kobject_get(&mci->edac_mci_kobj) after edac_mc_alloc(). Then the mci is still available after returning from edac_mc_del_mc() with refcount 1, and mci->pvt is still available. When i82875p_remove_one() finally calls edac_mc_free(), this will cause kobject_put() and mci is released properly. Signed-off-by:Jarkko Lavinen <jlavi@iki.fi> Cc: Doug Thompson <norsk5@yahoo.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
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Jarkko Lavinen authored
When I do "modprobe i82875p_edac" on my Asus P4C800 MB on kernels 2.6.26 or later, the module load fails due to BAR 0 collision. On 2.6.25 the module loads just fine. The overflow device on the MB seems to be hidden and its resources are not allocated at normal PCI bus init. Log shows the missing resource problem: EDAC DEBUG: i82875p_probe1() PCI: 0000:00:06.0 reg 10 32bit mmio: [fecf0000, fecf0fff] pci 0000:00:06.0: device not available because of BAR 0 [0xfecf0000-0xfecf0fff] collisions EDAC i82875p: i82875p_setup_overfl_dev(): Failed to enable overflow device The patch below fixes this by calling pci_bus_assign_resources() after the overflow device is revealed and added to the bus. With this patch I am again able to load and use the module. Signed-off-by:
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Dmitry Baryshkov authored
The commit aef7db4b fixed the problem with recursive locking in fb blanking code if blank is caused by user setting the /sys/class/graphics/fb*/blank. However this broke the fbcon timeout blanking. If you use a driver that defines ->fb_blank operation and at the same time that driver relies on other driver (e.g. backlight or lcd class) to blank the screen, when the fbcon times out and tries to blank the fb, it will call only fb driver blanker and won't notify the other driver. Thus FB output is disabled, but the screen isn't blanked. Restore fbcon blanking and at the same time apply the proper fix for the above problem: if fbcon_blank is called with FBINFO_FLAG_USEREVENT, we are already called through notification from fb_blank, thus we don't have to blank the fb again. Signed-off-by:
Dmitry Baryshkov <dbaryshkov@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Randy Dunlap authored
kernel-doc handles macros now (it has for quite some time), so change the ntfs_debug() macro's kernel-doc to be just before the macro instead of before a phony function prototype. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Cc: Anton Altaparmakov <aia21@cantab.net> Signed-off-by:
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Randy Dunlap authored
The method for listing varargs in kernel-doc notation is: * @...: these arguments are printed by the @fmt argument but scripts/kernel-doc is confused: it always lists varargs as: ... variable arguments and ignores the @...: line's description, but then prints that line after the list of function parameters as though it's not part of the function parameters. This patch makes kernel-doc print the supplied @... description if it is present; otherwise a boilerplate "variable arguments" is printed. Signed-off-by:
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Manfred Spraul authored
2nd part of the fixes needed for http://bugzilla.kernel.org/show_bug.cgi?id=11796. When the idr tree is either grown or shrunk, then the update to the number of layers and the top pointer were not atomic. This race caused crashes. The attached patch fixes that by replicating the layers counter in each layer, thus idr_find doesn't need idp->layers anymore. Signed-off-by:
Manfred Spraul <manfred@colorfullife.com> Cc: Clement Calmels <cboulte@gmail.com> Cc: Nadia Derbey <Nadia.Derbey@bull.net> Cc: Pierre Peiffer <peifferp@gmail.com> Cc: <stable@kernel.org> Signed-off-by:
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FUJITA Tomonori authored
- pci_map_sg/dma_map_sg are used with a scatter gather list that doesn't come from the block layer (e.g. some network drivers do). - how IOMMUs merge adjacent elements of the scatter/gather list is independent of how the block layer determines sees elements. Signed-off-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Tejun Heo <htejun@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by:
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David Howells authored
Fix the error handling in sys_mmap2(). Currently, if the pgoff check fails, fput() might have to be called (which it isn't), so do the pgoff check first, before fget() is called. Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Arjan van de Ven authored
The description for 'D' was missing in the comment... (causing me a minute of WTF followed by looking at more of the code) Signed-off-by:
Arjan van de Ven <arjan@linux.intel.com> Signed-off-by:
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Benjamin Herrenschmidt authored
The engine on some radeon variants locks up if color expansion is called for non aligned source data. This patch enables a feature of the core fbdev to request aligned input pixmaps and uses the HW clipping engine to clip the output to the requested size Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11875Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by:
James Cloos <cloos@jhcloos.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "David S. Miller" <davem@davemloft.net> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by:
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Ben Dooks authored
The spi master driver must have num_chipselect set to allow the bus to initialise. Pass this through the platform data. Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Ben Dooks authored
The spidev_to_sg() call in spi_s3c24xx_gpio.c was using the wrong method to convert the spi device into the private data for the driver. Fix this by using spi_master_get_devdata. Signed-off-by:
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Jan Nikitenko authored
Fix unsafe order in dma mapping operation: always flush data from the cache *BEFORE* invalidating it, to allow full duplex transfers where the same buffer may be used for both writes and reads. Tested with mmc-spi. Signed-off-by:
Jan Nikitenko <jan.nikitenko@gmail.com> Signed-off-by:
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Julien Boibessot authored
Corrects spi_imx driver oops during initialization/probing: can't use drv_data before it's allocated. Signed-off-by:
Julien Boibessot <julien.boibessot@armadeus.com> Acked-by:
Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
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Davide Libenzi authored
It has been thought that the per-user file descriptors limit would also limit the resources that a normal user can request via the epoll interface. Vegard Nossum reported a very simple program (a modified version attached) that can make a normal user to request a pretty large amount of kernel memory, well within the its maximum number of fds. To solve such problem, default limits are now imposed, and /proc based configuration has been introduced. A new directory has been created, named /proc/sys/fs/epoll/ and inside there, there are two configuration points: max_user_instances = Maximum number of devices - per user max_user_watches = Maximum number of "watched" fds - per user The current default for "max_user_watches" limits the memory used by epoll to store "watches", to 1/32 of the amount of the low RAM. As example, a 256MB 32bit machine, will have "max_user_watches" set to roughly 90000. That should be enough to not break existing heavy epoll users. The default value for "max_user_instances" is set to 128, that should be enough too. This also changes the userspace, because a new error code can now come out from EPOLL_CTL_ADD (-ENOSPC). The EMFILE from epoll_create() was already listed, so that should be ok. [akpm@linux-foundation.org: use get_current_user()] Signed-off-by:
Davide Libenzi <davidel@xmailserver.org> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: <stable@kernel.org> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Reported-by:
Vegard Nossum <vegardno@ifi.uio.no> Signed-off-by:
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Stefano Babic authored
According to the manual the "tdfOnExit" flag must be set on the last byte we want to send. The PSC controller holds SS low until the flag is set. However, the flag was set always on the last byte of the FIFO, independently if it is the last byte of the transfer. This generates spurious toggling of the SS signals that breaks the protocol of some peripherals. Fix. Signed-off-by:
Stefano Babic <sbabic@denx.de> Acked-by:
Grant Likely <grant.likely@secretlab.ca> Signed-off-by:
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Wolfgang Ocker authored
I saw a kernel oops in spidev_remove() when a spidev device was registered and I unloaded the SPI master driver: Unable to handle kernel paging request for data at address 0x00000004 Faulting instruction address: 0xc01c0c50 Oops: Kernel access of bad area, sig: 11 [#1] CDSPR Modules linked in: spi_ppc4xx(-) NIP: c01c0c50 LR: c01bf9e4 CTR: c01c0c34 REGS: cec89c30 TRAP: 0300 Not tainted (2.6.27.3izt) MSR: 00021000 <ME> CR: 24000228 XER: 20000007 DEAR: 00000004, ESR: 00800000 TASK = cf889040[2070] 'rmmod' THREAD: cec88000 GPR00: 00000000 cec89ce0 cf889040 cec8e000 00000004 cec8e000 ffffffff 00000000 GPR08: 0000001c c0336380 00000000 c01c0c34 00000001 1001a338 100e0000 100df49c GPR16: 100b54c0 100df49c 100ddd20 100f05a8 100b5340 100efd68 00000000 00000000 GPR24: 100ec008 100f0428 c0327788 c0327794 cec8e0ac cec8e000 c0336380 00000000 NIP [c01c0c50] spidev_remove+0x1c/0xe4 LR [c01bf9e4] spi_drv_remove+0x2c/0x3c Call Trace: [cec89d00] [c01bf9e4] spi_drv_remove+0x2c/0x3c [cec89d10] [c01859a0] __device_release_driver+0x78/0xb4 [cec89d20] [c0185ab0] device_release_driver+0x28/0x44 [cec89d40] [c0184be8] bus_remove_device+0xac/0xd8 [cec89d60] [c0183094] device_del+0x100/0x194 [cec89d80] [c0183140] device_unregister+0x18/0x30 [cec89da0] [c01bf30c] __unregister+0x20/0x34 [cec89db0] [c0182778] device_for_each_child+0x38/0x74 [cec89de0] [c01bf2d0] spi_unregister_master+0x28/0x44 [cec89e00] [c01bfeac] spi_bitbang_stop+0x1c/0x58 [cec89e20] [d908a5e0] spi_ppc4xx_of_remove+0x24/0x7c [spi_ppc4xx] [...] IMHO a call to spi_set_drvdata() is missing in spidev_probe(). The patch below helped. Signed-off-by:
Wolfgang Ocker <weo@reccoware.de> Signed-off-by:
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roel kluin authored
Use __initdata for data, not __init. Signed-off-by:
Roel Kluin <roel.kluin@gmail.com> Signed-off-by:
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Henrik Rydberg authored
make use of the new dmi device loading support to automatically load the applesmc driver based on the dmi_match table. Signed-off-by:
Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Signed-off-by:
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Takashi Iwai authored
The netmos_9xx5_combo type assumes that PCI SSID provides always the correct value for the number of parallel and serial ports, but there are indeed broken devices with wrong numbers, which may result in Oops. This patch simply adds the check of the array range. Reference: Novell bnc#447067 https://bugzilla.novell.com/show_bug.cgi?id=447067Signed-off-by:
Takashi Iwai <tiwai@suse.de> Cc: <stable@kernel.org> Signed-off-by:
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KAMEZAWA Hiroyuki authored
Fixes for memcg/memory hotplug. While memory hotplug allocate/free memmap, page_cgroup doesn't free page_cgroup at OFFLINE when page_cgroup is allocated via bootomem. (Because freeing bootmem requires special care.) Then, if page_cgroup is allocated by bootmem and memmap is freed/allocated by memory hotplug, page_cgroup->page == page is no longer true. But current MEM_ONLINE handler doesn't check it and update page_cgroup->page if it's not necessary to allocate page_cgroup. (This was not found because memmap is not freed if SPARSEMEM_VMEMMAP is y.) And I noticed that MEM_ONLINE can be called against "part of section". So, freeing page_cgroup at CANCEL_ONLINE will cause trouble. (freeing used page_cgroup) Don't rollback at CANCEL. One more, current memory hotplug notifier is stopped by slub because it sets NOTIFY_STOP_MASK to return vaule. So, page_cgroup's callback never be called. (low priority than slub now.) I think this slub's behavior is not intentional(BUG). and fixes it. Another way to be considered about page_cgroup allocation: - free page_cgroup at OFFLINE even if it's from bootmem and remove specieal handler. But it requires more changes. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=12041Signed-off-by:KAMEZAWA Hiruyoki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Tested-by:
Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by:
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Nick Piggin authored
Jim Radford has reported that the vmap subsystem rewrite was sometimes causing his VIVT ARM system to behave strangely (seemed like going into infinite loops trying to fault in pages to userspace). We determined that the problem was most likely due to a cache aliasing issue. flush_cache_vunmap was only being called at the moment the page tables were to be taken down, however with lazy unmapping, this can happen after the page has subsequently been freed and allocated for something else. The dangling alias may still have dirty data attached to it. The fix for this problem is to do the cache flushing when the caller has called vunmap -- it would be a bug for them to write anything else to the mapping at that point. That appeared to solve Jim's problems. Reported-by:
Jim Radford <radford@blackbean.org> Signed-off-by:
Nick Piggin <npiggin@suse.de> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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