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2007-07-20IB/mlx4: Fix error path in create_qp_common()Roland Dreier
The error handling code at err_wrid in create_qp_common() does not handle a userspace QP attached to an SRQ correctly, since it ends up in the else clause of the if statement. This means it tries to kfree() the uninitialized qp->sq.wrid and qp->rq.wrid pointers. Fix this so we only free the wrid arrays for kernel QPs. Pointed out by Michael S. Tsirkin <mst@dev.mellanox.co.il>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-20mlx4_core: Change command token on timeoutRoland Dreier
The FW command token is currently only updated on a command completion event. This means that on command timeout, the same token will be reused for new command, which results in a mess if the timed out command *does* eventually complete. This is the same change as the patch for mthca from Michael S. Tsirkin <mst@dev.mellanox.co.il> that was just merged. It seems sensible to avoid gratuitous differences in FW command processing between mthca and mlx4. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-20IB/mthca: Change command token on timeoutMichael S. Tsirkin
The FW command token is currently only updated on a command completion event. This means that on command timeout, the same token will be reused for new command, which results in a mess if the timed out command *does* eventually complete. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-20IB/ipath: Remove ipath_layer dead codeArthur Jones
The ipath_layer.[ch] code was an attempt to provide a single interface for the ipath verbs and ipath_ether code to use. As verbs functionality increased, the layer's functionality became insufficient and the verbs code broke away to interface directly to the driver. The failed attempt to get ipath_ether upstream was the final nail in the coffin and now it sits quietly in a dark kernel.org corner waiting for someone to notice the smell and send it along to it's final resting place. Roland Dreier was that someone -- this patch expands on his work... Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-20IB/mlx4: Fix leaks in __mlx4_ib_modify_qpFlorin Malita
Temporarily allocated struct mlx4_qp_context *context is leaked by several error paths. The patch takes advantage of the return value 'err' being preinitialized to -EINVAL. Spotted by Coverity (CID 1768). Signed-off-by: Florin Malita <fmalita@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-20Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: fix section mismatch warning in mdesc.c [SPARC64]: fix section mismatch warning in pci_sunv4 [SPARC64]: Stop using drivers/char/rtc.c [SPARC64]: Convert parport to of_platform_driver. [SPARC]: Implement fb_is_primary_device(). [SPARC64]: Fix virq decomposition. [SPARC64]: Use KERN_ERR in IRQ manipulation error printks. [SPARC64]: Do not flood log with failed DS messages. [SPARC64]: Add proper multicast support to VNET driver. [SPARC64]: Handle multiple domain-services-port nodes properly. [SPARC64]: Improve VIO device naming further. [SPARC]: Make sure dev_archdata is filled in for all devices. [SPARC]: Define minimal struct dev_archdata, similarly to sparc64. [SPARC]: Fix serial console device detection.
2007-07-20[SPARC64]: Stop using drivers/char/rtc.cDavid S. Miller
The existing sparc64 mini_rtc driver can handle CMOS based rtcs trivially with just a few lines of code and the simplifies things tremendously. Tested on SB1500. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC64]: Add proper multicast support to VNET driver.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC]: Make sure dev_archdata is filled in for all devices.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC]: Fix serial console device detection.David S. Miller
The current scheme works on static interpretation of text names, which is wrong. The output-device setting, for example, must be resolved via an alias or similar to a full path name to the console device. Paths also contain an optional set of 'options', which starts with a colon at the end of the path. The option area is used to specify which of two serial ports ('a' or 'b') the path refers to when a device node drives multiple ports. 'a' is assumed if the option specification is missing. This was caught by the UltraSPARC-T1 simulator. The 'output-device' property was set to 'ttya' and we didn't pick upon the fact that this is an OBP alias set to '/virtual-devices/console'. Instead we saw it as the first serial console device, instead of the hypervisor console. The infrastructure is now there to take advantage of this to resolve the console correctly even in multi-head situations in fbcon too. Thanks to Greg Onufer for the bug report. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20Merge branch 'master' of ↵Linus Torvalds
ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: V4L/DVB (5880): wm8775/wm8739: Fix memory leak when unloading module V4L/DVB (5877): radio-gemtek-pci: remove unused structure member V4L/DVB (5871): Conexant 2388x: check for kthread_run V4L/DVB (5869): Add check for valid control ID to v4l2_ctrl_next. V4L/DVB (5867): videodev2.h: add missing <sys/time.h> for userspace V4L/DVB (5866): ivtv: fix DMA timeout when capturing VBI + another stream V4L/DVB (5865): Remove usage of HZ on ivtv driver, replacing by msecs_to_jiffies V4L/DVB (5861): Use msecs_to_jiffies instead of HZ on bttv, cx88 and saa7134 V4L/DVB (5860): Use msecs_to_jiffies instead of HZ on some webcam drivers V4L/DVB (5859): use msecs_to_jiffies on InfraRed RC5 timeout V4L/DVB (5858): Use msecs_to_jiffies instead of HZ on media/video I2C drivers V4L/DVB (5857): Use msecs_to_jiffies instead of HZ on radio drivers V4L/DVB (5855): ivtv: fix Kconfig typo and refer to the driver homepage. V4L/DVB (5854): ivtv: cleanup of driver messages V4L/DVB (5853): ivtv: add support to suppress high volume i2c debug messages. V4L/DVB (5852): ivtv: don't recompile needlessly V4L/DVB (5851): ivtv: fix missing I2C_ALGOBIT config option V4L/DVB (5850): ivtv: improve API command debugging V4L/DVB (5848): Av7110: fix typo
2007-07-20Merge branch 'for-2.6.23' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/arnd/cell-2.6 * 'for-2.6.23' of master.kernel.org:/pub/scm/linux/kernel/git/arnd/cell-2.6: (37 commits) [CELL] spufs: rework list management and associated locking [CELL] oprofile: add support to OProfile for profiling CELL BE SPUs [CELL] oprofile: enable SPU switch notification to detect currently active SPU tasks [CELL] spu_base: locking cleanup [CELL] cell: indexing of SPUs based on firmware vicinity properties [CELL] spufs: integration of SPE affinity with the scheduller [CELL] cell: add placement computation for scheduling of affinity contexts [CELL] spufs: extension of spu_create to support affinity definition [CELL] cell: add hardcoded spu vicinity information for QS20 [CELL] cell: add vicinity information on spus [CELL] cell: add per BE structure with info about its SPUs [CELL] spufs: use find_first_bit() instead of sched_find_first_bit() [CELL] spufs: remove unused file argument from spufs_run_spu() [CELL] spufs: change decrementer restore timing [CELL] spufs: dont halt decrementer at restore step 47 [CELL] spufs: limit saving MFC_CNTL bits [CELL] spufs: fix read and write for decr_status file [CELL] spufs: fix decr_status meanings [CELL] spufs: remove needless context save/restore code [CELL] spufs: fix array size of channel index ...
2007-07-20V4L/DVB (5880): wm8775/wm8739: Fix memory leak when unloading moduleHans Verkuil
State struct was never freed. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5877): radio-gemtek-pci: remove unused structure memberTrent Piepho
The drivers reads the PCI subsystem ID into its state structure, but it's never used anywhere. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5871): Conexant 2388x: check for kthread_runCyrill Gorcunov
The patch adds checking of kthread_run return code and issues a message if it fails. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5869): Add check for valid control ID to v4l2_ctrl_next.Hans Verkuil
If v4l2_ctrl_next is called without the V4L2_CTRL_FLAG_NEXT_CTRL then it should check whether the passed control ID is valid and return 0 if it isn't. Otherwise a for-loop over the control IDs will never end. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5866): ivtv: fix DMA timeout when capturing VBI + another streamHans Verkuil
The VBI DMA is handled in a special way and is marked with a bit. However, that bit was set at the wrong time and could be cleared by mistake if a PCM (or other) DMA request would arrive before the VBI DMA was completed. So on completion of the VBI DMA the driver no longer knew that that DMA transfer was for VBI data. And this in turn caused havoc with the card's DMA engine. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5865): Remove usage of HZ on ivtv driver, replacing by msecs_to_jiffiesMauro Carvalho Chehab
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5861): Use msecs_to_jiffies instead of HZ on bttv, cx88 and saa7134Mauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5860): Use msecs_to_jiffies instead of HZ on some webcam driversMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5859): use msecs_to_jiffies on InfraRed RC5 timeoutMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5858): Use msecs_to_jiffies instead of HZ on media/video I2C driversMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5857): Use msecs_to_jiffies instead of HZ on radio driversMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5855): ivtv: fix Kconfig typo and refer to the driver homepage.Hans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5854): ivtv: cleanup of driver messagesHans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5853): ivtv: add support to suppress high volume i2c debug messages.Hans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5852): ivtv: don't recompile needlesslyAlexey Dobriyan
Driver prints banner including kernel version. Was a leftover from when the driver was standalone. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5851): ivtv: fix missing I2C_ALGOBIT config optionHans Verkuil
I2C_ALGOBIT must also be selected when ivtv is selected. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5850): ivtv: improve API command debuggingHans Verkuil
Turn off debugging of API commands that occur during encoding or decoding, unless they are explicitly requested. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5848): Av7110: fix typoYoann Padioleau
Parse error in ifdef or bad use of macro. Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20[CELL] oprofile: add support to OProfile for profiling CELL BE SPUsBob Nelson
From: Maynard Johnson <mpjohn@us.ibm.com> This patch updates the existing arch/powerpc/oprofile/op_model_cell.c to add in the SPU profiling capabilities. In addition, a 'cell' subdirectory was added to arch/powerpc/oprofile to hold Cell-specific SPU profiling code. Exports spu_set_profile_private_kref and spu_get_profile_private_kref which are used by OProfile to store private profile information in spufs data structures. Also incorporated several fixes from other patches (rrn). Check pointer returned from kzalloc. Eliminated unnecessary cast. Better error handling and cleanup in the related area. 64-bit unsigned long parameter was being demoted to 32-bit unsigned int and eventually promoted back to unsigned long. Signed-off-by: Carl Love <carll@us.ibm.com> Signed-off-by: Maynard Johnson <mpjohn@us.ibm.com> Signed-off-by: Bob Nelson <rrnelson@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org>
2007-07-20Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Prevent people from directly including <asm/rwsem.h>. [IA64] remove time interpolator [IA64] Convert to generic timekeeping/clocksource [IA64] refresh some config files for 64K pagesize [IA64] Delete iosapic_free_rte() [IA64] fallocate system call [IA64] Enable percpu vector domain for IA64_DIG [IA64] Enable percpu vector domain for IA64_GENERIC [IA64] Support irq migration across domain [IA64] Add support for vector domain [IA64] Add mapping table between irq and vector [IA64] Check if irq is sharable [IA64] Fix invalid irq vector assumption for iosapic [IA64] Use dynamic irq for iosapic interrupts [IA64] Use per iosapic lock for indirect iosapic register access [IA64] Cleanup lock order in iosapic_register_intr [IA64] Remove duplicated members in iosapic_rte_info [IA64] Remove block structure for locking in iosapic.c
2007-07-20Fix memory leak in tpm_binary_bios_measurements_open()Reiner Sailer
The same problem that was fixed for tpm_ascii_bios_measurements_open() in commit 178554ae75739e91dc4d7c3e42a3db95448cc5bf also occurs in tpm_binary_bios measurements(). Thanks for noticing this Satyam! I tested the attached patch to fix tpm_binary_bios_measurments as well. Signed-off-by: Reiner Sailer <sailer@watson.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20Pull ia64-clocksource into release branchTony Luck
2007-07-20[IA64] Convert to generic timekeeping/clocksourceTony Luck
This is a merge of Peter Keilty's initial patch (which was revived by Bob Picco) for this with Hidetoshi Seto's fixes and scaling improvements. Acked-by: Bob Picco <bob.picco@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-07-20KVM: MMU: Fix oopses with SLUBAvi Kivity
The kvm mmu uses page->private on shadow page tables; so does slub, and an oops result. Fix by allocating regular pages for shadows instead of using slub. Tested-by: S.Çağlar Onur <caglar@pardus.org.tr> Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-07-20KVM: x86 emulator: implement rdmsr and wrmsrAvi Kivity
Allow real-mode emulation of rdmsr and wrmsr. This allows smp Windows to boot, presumably for its sipi trampoline. Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-07-20KVM: Fix memory slot management functions for guest smpAvi Kivity
The memory slot management functions were oriented against vcpu 0, where they should be kvm-wide. This causes hangs starting X on guest smp. Fix by making the functions (and resultant tail in the mmu) non-vcpu-specific. Unfortunately this reduces the efficiency of the mmu object cache a bit. We may have to revisit this later. Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-07-20KVM: MMU: Store nx bit for large page shadowsAvi Kivity
We need to distinguish between large page shadows which have the nx bit set and those which don't. The problem shows up when booting a newer smp Linux kernel, where the trampoline page (which is in real mode, which uses the same shadow pages as large pages) is using the same mapping as a kernel data page, which is mapped using nx, causing kvm to spin on that page. Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-07-20Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sfr/ofcons * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/ofcons: Create drivers/of/platform.c Create linux/of_platorm.h [SPARC/64] Rename some functions like PowerPC Begin consolidation of of_device.h Begin to consolidate of_device.c Consolidate of_find_node_by routines Consolidate of_get_next_child Consolidate of_get_parent Consolidate of_find_property Consolidate of_device_is_compatible Start split out of common open firmware code Split out common parts of prom.h
2007-07-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: appletouch - improve powersaving for Geyser3 devices Input: lifebook - fix an oops on Panasonic CF-18 Input: document intended meaning of KEY_SWITCHVIDEOMODE Input: switch to using seq_list_xxx helpers Input: i8042 - give more trust to PNP data on i386 Input: add driver for Fujitsu serial touchscreens Input: ads7846 - re-check pendown status before reporting events Input: ads7846 - introduce sample settling delay Input: xpad - add support for leds on xbox 360 pad
2007-07-20pata_cs5520: Fix probe bug regression introduced in 2.6.22Alan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linux Torvalds <torvalds@linux-foundation.org>
2007-07-20lguest: override sched_clockRusty Russell
Guests currently use the default scheduler clock: this means they always use jiffies even if TSC is actually available. It doesn't make any noticeable difference here, but it's a better thing to do. Also remove commented-out asm/sched-clock.h from -mm tree. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20lguest: trivial: We now have asm/processor-flags.h, so use it.Rusty Russell
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20lguest: fix sense if IF flag on interrupt injectionRusty Russell
The sense of the IF bit is backwards in the host interrupt handling. This means we always save "IF=1" on the stack when injecting an interrupt. It turns out this is almost always correct (unless the guest is taking a page fault in an interrupt due to an unpopulated vmalloc mapping), so went unnoticed. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits) sh: intc - add support for SH7750 and its variants sh: Move entry point code to .text.head. sh: heartbeat: Shut up resource size warning. sh: update r2d defconfig and fix SH7751R pci compliation sh: Many symbol exports for nommu allmodconfig. sh: zero terminate 8250 platform data for r2d board sh: cpufreq: Fix up the build for SH-2. sh: Make on-chip DMA channel selection explicit. sh: Fix up CPU dependencies for on-chip DMAC. sh: cpufreq: clock framework support. sh: Support rate rounding for SH7722 FRQCR clocks. sh: Implement clk_round_rate() in the clock framework. sh: Fix up PCI section mismatch warnings. sh: Wire up fallocate() syscall. sh: intc - add support for 7780 sh: intc - improve group support sh: Fix up SH-3 and SH-4 driver dependencies. sh: push-switch: Correct license string. sh: cpufreq: Fix driver dependencies and flag as broken. sh: IPR/INTC2 IRQ setup consolidation. ...
2007-07-20Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (29 commits) libata: implement EH fast drain libata: schedule probing after SError access failure during autopsy libata: clear HOTPLUG flag after a reset libata: reorganize ata_ehi_hotplugged() libata: improve SCSI scan failure handling libata: quickly trigger SATA SPD down after debouncing failed libata: improve SATA PHY speed down logic The SATA controller device ID is different according to ahci: implement SCR_NOTIFICATION r/w ahci: make NO_NCQ handling more consistent libata: make ->scr_read/write callbacks return error code libata: implement AC_ERR_NCQ libata: improve EH report formatting sata_sil24: separate out sil24_do_softreset() sata_sil24: separate out sil24_exec_polled_cmd() sata_sil24: replace sil24_update_tf() with sil24_read_tf() ahci: separate out ahci_do_softreset() ahci: separate out ahci_exec_polled_cmd() ahci: separate out ahci_kick_engine() ahci: use deadline instead of fixed timeout for 1st FIS for SRST ...
2007-07-20Memory leak in tpm_ascii_bios_measurements_open()Jesper Juhl
Coverity found a memory leak in tpm_ascii_bios_measurements_open(). If "read_log(log)" fails, then we may leak 'log' and 'log->bios_event_log'. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Cc: Seiji Munetoh <munetoh@jp.ibm.com> Cc: Stefan Berger <stefanb@us.ibm.com> Cc: Reiner Sailer <sailer@watson.ibm.com> Cc: Kylene Hall <kjhall@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20cr_backlight_probe() allocates too little storage for struct cr_panelJesper Juhl
The Coverity checker noticed that we allocate too little storage for "struct cr_panel *crp" in cr_backlight_probe(). Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Cc: Thomas Hellstrom <thomas@tungstengraphics.com> Cc: Alan Hourihane <alanh@tungstengraphics.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20async_tx: fix kmap_atomic usage in async_memcpyDan Williams
Andrew Morton: [async_memcpy] is very wrong if both ASYNC_TX_KMAP_DST and ASYNC_TX_KMAP_SRC can ever be set. We'll end up using the same kmap slot for both src add dest and we get either corrupted data or a BUG. Evgeniy Polyakov: Btw, shouldn't it always be kmap_atomic() even if flag is not set. That pages are usual one returned by alloc_page(). So fix the usage of kmap_atomic and kill the ASYNC_TX_KMAP_DST and ASYNC_TX_KMAP_SRC flags. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>