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2011-05-24mach-ux500: update ASIC version detectionLinus Walleij
This makes the core detect the DB8500 V2.0 and V2.1 ASICs, and add a convenience macro for "V2 or later". Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: update SoC and board IRQ handlingRabin Vincent
This splits out a per-SoC IRQ range handling, so that the DB8500 and DB5500 SoC:s can reuse aproximately the same IRQ range with the largest span setting the roof. The same change is done for the boards, mutatis mutandis, with a new file for the U5500 board. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: update the DB5500 register fileLinus Walleij
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: update the DB8500 register fileLinus Walleij
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24wireless: fix fatal kernel-doc error + warning in mac80211.hRandy Dunlap
Fix new kernel-doc Error and Warning in <net/mac80211.h>: Error(linux-2.6.39-git5/include/net/mac80211.h:550): cannot understand prototype: 'struct ieee80211_sched_scan_ies ' Warning(linux-2.6.39-git5/include/net/mac80211.h:2289): No description found for parameter 'sta' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-24wireless: fix cfg80211.h new kernel-doc warningsRandy Dunlap
Fix new kernel-doc warnings in <net/cfg80211.h>: Warning(linux-2.6.39-git5/include/net/cfg80211.h:560): No description found for parameter 'bss_param' Warning(linux-2.6.39-git5/include/net/cfg80211.h:1555): Enum value 'WIPHY_FLAG_SUPPORTS_SCHED_SCAN' not described in enum 'wiphy_flags' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-24iwlagn: dbg_fixed_rate only used when CONFIG_MAC80211_DEBUGFS enabledWey-Yi Guy
Fix compiling error when CONFIG_MAC80211_DEBUGFS is not enabled drivers/net/wireless/iwlwifi/iwl-agn-rs.c:351: error: 'struct iwl_lq_sta' has no member named 'dbg_fixed_rate' drivers/net/wireless/iwlwifi/iwl-agn-rs.c:1076: error: 'struct iwl_lq_sta' has no member named 'dbg_fixed_rate' Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-24Merge branch 'drm-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (169 commits) drivers/gpu/drm/radeon/atom.c: fix warning drm/radeon/kms: bump kms version number drm/radeon/kms: properly set num banks for fusion asics drm/radeon/kms/atom: move dig phy init out of modesetting drm/radeon/kms/cayman: fix typo in register mask drm/radeon/kms: fix typo in spread spectrum code drm/radeon/kms: fix tile_config value reported to userspace on cayman. drm/radeon/kms: fix incorrect comparison in cayman setup code. drm/radeon/kms: add wait idle ioctl for eg->cayman drm/radeon/cayman: setup hdp to invalidate and flush when asked drm/radeon/evergreen/btc/fusion: setup hdp to invalidate and flush when asked agp/uninorth: Fix lockups with radeon KMS and >1x. drm/radeon/kms: the SS_Id field in the LCD table if for LVDS only drm/radeon/kms: properly set the CLK_REF bit for DCE3 devices drm/radeon/kms: fixup eDP connector handling drm/radeon/kms: bail early for eDP in hotplug callback drm/radeon/kms: simplify hotplug handler logic drm/radeon/kms: rewrite DP handling drm/radeon/kms/atom: add support for setting DP panel mode drm/radeon/kms: atombios.h updates for DP panel mode ...
2011-05-24Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (29 commits) [S390] cpu hotplug: fix external interrupt subclass mask handling [S390] oprofile: dont access lowcore [S390] oprofile: add missing irq stats counter [S390] Ignore sendmmsg system call note wired up warning [S390] s390,oprofile: fix compile error for !CONFIG_SMP [S390] s390,oprofile: fix alert counter increment [S390] Remove unused includes in process.c [S390] get CPC image name [S390] sclp: event buffer dissection [S390] chsc: process channel-path-availability information [S390] refactor page table functions for better pgste support [S390] merge page_test_dirty and page_clear_dirty [S390] qdio: prevent compile warning [S390] sclp: remove unnecessary sendmask check [S390] convert old cpumask API into new one [S390] pfault: cleanup code [S390] pfault: cpu hotplug vs missing completion interrupts [S390] smp: add __noreturn attribute to cpu_die() [S390] percpu: implement arch specific irqsafe_cpu_ops [S390] vdso: disable gcov profiling ...
2011-05-24i2c-parport: Various cleanupsJean Delvare
* Fix white space. * Rename labels to something meaningful. * Prefix defines with PORT_ to avoid collision with macros from <linux/parport.h>. * Add const markers where possible. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-24Merge 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: (40 commits) Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander Input: tsc2007 - add X, Y and Z fuzz factors to platform data Input: tsc2007 - add poll_period parameter to platform data Input: tsc2007 - add poll_delay parameter to platform data Input: tsc2007 - add max_rt parameter to platform data Input: tsc2007 - debounce pressure measurement Input: ad714x - fix captouch wheel option algorithm Input: ad714x - allow platform code to specify irqflags Input: ad714x - fix threshold and completion interrupt masks Input: ad714x - fix up input configuration Input: elantech - remove support for proprietary X driver Input: elantech - report multitouch with proper ABS_MT messages Input: elantech - export pressure and width when supported Input: elantech - describe further the protocol Input: atmel_tsadcc - correct call to input_free_device Input: add driver FSL MPR121 capacitive touch sensor Input: remove useless synchronize_rcu() calls Input: ads7846 - fix gpio_pendown configuration Input: ads7846 - add possibility to use external vref on ads7846 Input: rotary-encoder - add support for half-period encoders ...
2011-05-24i2c-i801: Don't depend on other kernel driver config optionsJean Delvare
Don't let other driver config options influence us, as it makes the code more complex and fragile for a small benefit. There's nothing wrong with instantiating I2C devices even if they don't have a driver. And we're talking about 835 extra bytes in the binary on x86-64, that's hardly worth arguing about. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Woodhouse <david.woodhouse@intel.com> Cc: Hans de Goede <hdegoede@redhat.com>
2011-05-24i2c-i801: Check for vendor Fujitsu before probing for apanelJean Delvare
Scanning the BIOS memory for the apanel information is costly, so avoid doing it on non-Fujitsu machines. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-24i2c-i801: Don't probe for slaves on IDF channelsJean Delvare
I don't know if Fujitsu is ever going to produce Patsburg-based machines, but if they do, I'd rather not probe the secondary (IDF) SMBus channels. At least not until we have a good reason for doing so. On a side note, I'm not even sure if it is right to enable detection of HWMON and DDC devices on the IDF channels. Time will tell... Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-24i2c-i801: SMBus patch for Intel Panther Point DeviceIDsSeth Heasley
This patch adds the SMBus controller DeviceID for the Intel Panther Point PCH. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-24i2c/writing-clients: Fix foo_driver.id_tableVikram Narayanan
The i2c_device_id structure variable's name is not used in the i2c_driver structure. Signed-off-by: Vikram Narayanan <vikram186@gmail.com> Cc: stable@kernel.org Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-24Merge branch 'for-2.6.40' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-2.6.40' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: Unify input section names percpu: Avoid extra NOP in percpu_cmpxchg16b_double percpu: Cast away printk format warning percpu: Always align percpu output section to PAGE_SIZE Fix up fairly trivial conflict in arch/x86/include/asm/percpu.h as per Tejun
2011-05-24ceph: fix cap flush race reentrancySage Weil
In e9964c10 we change cap flushing to do a delicate dance because some inodes on the cap_dirty list could be in a migrating state (got EXPORT but not IMPORT) in which we couldn't actually flush and move from dirty->flushing, breaking the while (!empty) { process first } loop structure. It worked for a single sync thread, but was not reentrant and triggered infinite loops when multiple syncers came along. Instead, move inodes with dirty to a separate cap_dirty_migrating list when in the limbo export-but-no-import state, allowing us to go back to the simple loop structure (which was reentrant). This is cleaner and more robust. Audited the cap_dirty users and this looks fine: list_empty(&ci->i_dirty_item) is still a reliable indicator of whether we have dirty caps (which list we're on is irrelevant) and list_del_init() calls still do the right thing. Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-24libceph: subscribe to osdmap when cluster is fullSage Weil
When the cluster is marked full, subscribe to subsequent map updates to ensure we find out promptly when it is no longer full. This will prevent us from spewing ENOSPC for (much) longer than necessary. Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-24libceph: handle new osdmap down/state change encodingSage Weil
Old incrementals encode a 0 value (nearly always) when an osd goes down. Change that to allow any state bit(s) to be flipped. Special case 0 to mean flip the CEPH_OSD_UP bit to mimic the old behavior. Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-24rbd: handle online resize of underlying rbd imageSage Weil
If we get a notification that the image header has changed, check for a change in the image size. Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-24ceph: avoid inode lookup on nfs fh reconnectSage Weil
If we get the inode from the MDS, we have a reference in req; don't do a fresh lookup. Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-24ceph: use LOOKUPINO to make unconnected nfs fh more reliableSage Weil
If we are unable to locate an inode by ino, ask the MDS using the new LOOKUPINO command. Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-24rbd: use snprintf for disk->disk_nameSage Weil
Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-24rbd: cleanup: make kfree match kmallocSage Weil
Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-24Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: switch to dynamic printks UBI: turn some macros into static inline UBI: improve checking in debugging prints UBI: fix typo in a message UBI: fix minor stylistic issues UBI: use __packed instead of __attribute__((packed)) UBI: cleanup comments around volume properties UBI: re-name set volume properties ioctl UBI: make the control character device non-seekable
2011-05-24Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/ubifs-2.6: (52 commits) UBIFS: switch to dynamic printks UBIFS: fix kernel-doc comments UBIFS: fix extremely rare mount failure UBIFS: simplify LEB recovery function further UBIFS: always cleanup the recovered LEB UBIFS: clean up LEB recovery function UBIFS: fix-up free space on mount if flag is set UBIFS: add the fixup function UBIFS: add a superblock flag for free space fix-up UBIFS: share the next_log_lnum helper UBIFS: expect corruption only in last journal head LEBs UBIFS: synchronize write-buffer before switching to the next bud UBIFS: remove BUG statement UBIFS: change bud replay function conventions UBIFS: substitute the replay tree with a replay list UBIFS: simplify replay UBIFS: store free and dirty space in the bud replay entry UBIFS: remove unnecessary stack variable UBIFS: double check that buds are replied in order UBIFS: make 2 functions static ...
2011-05-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (22 commits) m68knommu: Use generic show_interrupts() coldfire_qspi compile fix m68k: merge the mmu and non-mmu versions of sys_m68k.c m68knommu: use asm-generic/bitops/ext2-atomic.h m68knommu: Remove obsolete #include <linux/sys.h> m68k: merge mmu and non-mmu versions of asm-offsets.c m68k: merge non-mmu and mmu versions of m68k_ksyms.c m68knommu: remove un-needed exporting of COLDFIRE symbols m68knommu: move EXPORT of kernel_thread to function definition m68knommu: move EXPORT of local checksumming functions to definitions m68knommu: move EXPORT of dump_fpu to function definition m68knommu: clean up mm/init_no.c m68k: merge the mmu and non-mmu mm/Makefile m68k: mv kmap_mm.c to kmap.c m68knommu: remove stubs for __ioremap() and iounmap() m68knommu: remove unused kernel_set_cachemode() m68k: let Makefile sort out compiling mmu and non-mmu lib/checksum.c m68k: remove duplicate memcpy() implementation m68k: remove duplicate memset() implementation m68k: remove duplicate memmove() implementation ...
2011-05-24Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, ioapic: Restore ioapic entries during resume properly x86: Get rid of asmregparm um: Use RWSEM_GENERIC_SPINLOCK on x86
2011-05-24x86, ioapic: Restore ioapic entries during resume properlySuresh Siddha
In mask/restore_ioapic_entries() we should be restoring ioapic entries when ioapics[apic].saved_registers is not NULL. Fix the typo and address the resume hang regression reported by Linus. This was not found sooner because the systems where these changes were tested on kept the IO-APIC entries intact over resume. Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Daniel J Blueman <daniel.blueman@gmail.com> Link: http://lkml.kernel.org/r/1306259131.7171.7.camel@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-24dst: catch uninitialized metricsStephen Hemminger
Catch cases where dst_metric_set() and other functions are called but _metrics is NULL. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24be2net: hash key for rss-config cmd not setSathya Perla
A non-zero, non-descript value is needed as the hash key. The hash variable was left un-initialized; but sometimes it gets a zero value and hashing is not effective. The constant value used now (not of any significance) seems to work fine. Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24bridge: initialize fake_rtable metricsEric Dumazet
bridge netfilter code uses a fake_rtable, and we must init its _metric field or risk NULL dereference later. Ref: https://bugzilla.kernel.org/show_bug.cgi?id=35672 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24net: fix __dst_destroy_metrics_generic()Eric Dumazet
dst_default_metrics is readonly, we dont want to kfree() it later. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24CDC NCM: release interfaces fix in unbind()Alexey Orishko
Changes: - claim slave/data interface during bind() and release interfaces in unbind() unconditionally - in case of error during bind(), release claimed data interface in the same function - remove obsolited "*_claimed" entries from driver context Signed-off-by: Alexey Orishko <alexey.orishko@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24bnx2x: fix inverted conditionDmitry Kravkov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24igmp: call ip_mc_clear_src() only when we have no users of ip_mc_listVeaceslav Falico
In igmp_group_dropped() we call ip_mc_clear_src(), which resets the number of source filters per mulitcast. However, igmp_group_dropped() is also called on NETDEV_DOWN, NETDEV_PRE_TYPE_CHANGE and NETDEV_UNREGISTER, which means that the group might get added back on NETDEV_UP, NETDEV_REGISTER and NETDEV_POST_TYPE_CHANGE respectively, leaving us with broken source filters. To fix that, we must clear the source filters only when there are no users in the ip_mc_list, i.e. in ip_mc_dec_group() and on device destroy. Acked-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24net: use synchronize_rcu_expedited()Eric Dumazet
synchronize_rcu() is very slow in various situations (HZ=100, CONFIG_NO_HZ=y, CONFIG_PREEMPT=n) Extract from my (mostly idle) 8 core machine : synchronize_rcu() in 99985 us synchronize_rcu() in 79982 us synchronize_rcu() in 87612 us synchronize_rcu() in 79827 us synchronize_rcu() in 109860 us synchronize_rcu() in 98039 us synchronize_rcu() in 89841 us synchronize_rcu() in 79842 us synchronize_rcu() in 80151 us synchronize_rcu() in 119833 us synchronize_rcu() in 99858 us synchronize_rcu() in 73999 us synchronize_rcu() in 79855 us synchronize_rcu() in 79853 us When we hold RTNL mutex, we would like to spend some cpu cycles but not block too long other processes waiting for this mutex. We also want to setup/dismantle network features as fast as possible at boot/shutdown time. This patch makes synchronize_net() call the expedited version if RTNL is locked. synchronize_rcu_expedited() typical delay is about 20 us on my machine. synchronize_rcu_expedited() in 18 us synchronize_rcu_expedited() in 18 us synchronize_rcu_expedited() in 18 us synchronize_rcu_expedited() in 18 us synchronize_rcu_expedited() in 20 us synchronize_rcu_expedited() in 16 us synchronize_rcu_expedited() in 20 us synchronize_rcu_expedited() in 18 us synchronize_rcu_expedited() in 18 us Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> CC: Ben Greear <greearb@candelatech.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24[SCSI] Fix Ultrastor asm snippetSamuel Thibault
Commit 1292500b replaced "=m" (*field) : "1" (*field) with "=m" (*field) : with comment "The following patch fixes it by using the '+' operator on the (*field) operand, marking it as read-write to gcc." '+' was actually forgotten. This really puts it. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: stable@kernel.org Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24[SCSI] osst: fix warningAndrew Morton
drivers/scsi/osst.c: In function '__os_scsi_tape_open': drivers/scsi/osst.c:4705: warning: ISO C90 forbids mixed declarations and code Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24[SCSI] osst: wrong index used in inner loopRoel Kluin
Index i was already used in the outer loop. Fixes a potentially-infinite loop. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Willem Riede <osst@riede.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24[SCSI] aic94xx: world-writable sysfs update_bios fileVasiliy Kulikov
Don't allow everybody to load firmware. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24RDMA/nes: Add a check for strict_strtoul()Liu Yuan
It should check if strict_strtoul() succeeds before using 'wqm_quanta_value'. Signed-off-by: Liu Yuan <tailai.ly@taobao.com> [ Convert to kstrtoul() directly while we're here. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-05-24[SCSI] MAINTAINERS: Add drivers/target/ entryNicholas Bellinger
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24[SCSI] target: Convert TASK_ATTR to scsi_tcq.h definitionsNicholas Bellinger
This patch converts target core and follwing scsi-misc upstream fabric modules to use include/scsi/scsi_tcq.h includes for SIMPLE, HEAD_OF_QUEUE and ORDERED SCSI tasks instead of scsi/libsas.h with TASK_ATTR* *) tcm_loop: Convert tcm_loop_allocate_core_cmd() + tcm_loop_device_reset() to scsi_tcq.h *) tcm_fc: Convert ft_send_cmd() from FCP_PTA_* to scsi_tcq.h Reported-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24[SCSI] target: Convert REPORT_LUNs to use int_to_scsilunNicholas Bellinger
This patch converts transport_core_report_lun_response() to use drivers/scsi/scsi_scan.c:int_to_scsilun instead of using the struct target_core_fabric_ops->pack_lun() fabric provided API vector. It also removes the tfo->pack_lun check from target_fabric_tf_ops_check() and removes from struct target_core_fabric_ops->pack_lun() from target_core_fabric_ops.h, and the following mainline scsi-misc fabric modules: *) tcm_loop: Drop tcm_loop_pack_lun() usage *) tcm_fc: Drop ft_pack_lun() usage Reported-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24[SCSI] target: Fix task->task_execute_queue=1 clear bug + LUN_RESET OOPsNicholas Bellinger
This patch fixes a bug where task->task_execute_queue=1 was not being cleared once se_task had been removed from se_device->execute_task_list, resulting in an OOPs in core_tmr_lun_reset() for the task->task_active=0 case where transport_remove_task_from_execute_queue() was incorrectly being called. This patch fixes two cases in transport_get_task_from_execute_queue() and transport_remove_task_from_execute_queue() to properly clear task->task_execute_queue=0 once list_del(&task->t_execute_list) has been called. It also adds an explict check in transport_remove_task_from_execute_queue() to dump_stack + return if called with task->task_execute_queue=0. Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Cc: stable@kernel.org Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24RDMA/cxgb3: Don't post zero-byte read if endpoint is going awaySteve Wise
tx_ack() wasn't checking the endpoint state and consequently would attempt to post the p2p 0B read on an endpoint/QP that is closing or aborting. This causes a NULL pointer dereference crash. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-05-24[SCSI] target: Fix bug with task_sg chained transport_free_dev_tasks releaseNicholas Bellinger
This patch addresses a bug in the target core release path for HW operation where transport_free_dev_tasks() was incorrectly being called from transport_lun_remove_cmd() while releasing a se_cmd reference and calling struct target_core_fabric_ops->queue_data_in(). This would result in a OOPs with HW target mode when the release of se_task->task_sg[] would happen before pci_unmap_sg() can be called in HW target mode fabric module code. This patch addresses the issue by moving transport_free_dev_tasks() from transport_lun_remove_cmd() into transport_generic_free_cmd(), and adding TRANSPORT_FREE_CMD_INTR and transport_generic_free_cmd_intr() to allow se_cmd descriptor release to happen fromfrom within transport_processing_thread() process context when release of se_cmd is not possible from HW interrupt context. Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Cc: stable@kernel.org Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24[SCSI] target: Fix interrupt context bug with stats_lock and core_tmr_alloc_reqNicholas Bellinger
This patch fixes two bugs wrt to the interrupt context usage of target core with HW target mode drivers. It first converts the usage of struct se_device->stats_lock in transport_get_lun_for_cmd() and core_tmr_lun_reset() to properly use spin_lock_irq() to address an BUG with CONFIG_LOCKDEP_SUPPORT=y enabled. This patch also adds a 'in_interrupt()' check to allow GFP_ATOMIC usage from core_tmr_alloc_req() to fix a 'sleeping in interrupt context' BUG with HW target fabrics that require this logic to function. Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Cc: stable@kernel.org Signed-off-by: James Bottomley <jbottomley@parallels.com>
generated by cgit (git 2.34.1) at 2025-09-16 20:18:33 +0000