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Groups > linux.kernel > #1201282
| From | Kamal Mostafa <kamal@canonical.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3.19.y-ckt 024/107] powerpc/powernv: Fix race in updating core_idle_state |
| Date | 2015-08-06 00:20 +0200 |
| Message-ID | <pUfcw-69Y-69@gated-at.bofh.it> (permalink) |
| References | <pUeJs-5l3-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
3.19.8-ckt5 -stable review patch. If anyone has any objections, please let me know. ------------------ From: "Shreyas B. Prabhu" <shreyas@linux.vnet.ibm.com> commit b32aadc1a8ed84afbe924cd2ced31cd6a2e67074 upstream. core_idle_state is maintained for each core. It uses 0-7 bits to track whether a thread in the core has entered fastsleep or winkle. 8th bit is used as a lock bit. The lock bit is set in these 2 scenarios- - The thread is first in subcore to wakeup from sleep/winkle. - If its the last thread in the core about to enter sleep/winkle While the lock bit is set, if any other thread in the core wakes up, it loops until the lock bit is cleared before proceeding in the wakeup path. This helps prevent race conditions w.r.t fastsleep workaround and prevents threads from switching to process context before core/subcore resources are restored. But, in the path to sleep/winkle entry, we currently don't check for lock-bit. This exposes us to following race when running with subcore on- First thread in the subcorea Another thread in the same waking up core entering sleep/winkle lwarx r15,0,r14 ori r15,r15,PNV_CORE_IDLE_LOCK_BIT stwcx. r15,0,r14 [Code to restore subcore state] lwarx r15,0,r14 [clear thread bit] stwcx. r15,0,r14 andi. r15,r15,PNV_CORE_IDLE_THREAD_BITS stw r15,0(r14) Here, after the thread entering sleep clears its thread bit in core_idle_state, the value is overwritten by the thread waking up. In such cases when the core enters fastsleep, code mistakes an idle thread as running. Because of this, the first thread waking up from fastsleep which is supposed to resync timebase skips it. So we can end up having a core with stale timebase value. This patch fixes the above race by looping on the lock bit even while entering the idle states. Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com> Fixes: 7b54e9f213f76 'powernv/powerpc: Add winkle support for offline cpus' Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- arch/powerpc/kernel/idle_power7.S | 31 +++++++++++++++++++++---------- 1 file changed, 21 insertions(+), 10 deletions(-) diff --git a/arch/powerpc/kernel/idle_power7.S b/arch/powerpc/kernel/idle_power7.S index 401d8d0..7bc5750 100644 --- a/arch/powerpc/kernel/idle_power7.S +++ b/arch/powerpc/kernel/idle_power7.S @@ -52,6 +52,22 @@ .text /* + * Used by threads when the lock bit of core_idle_state is set. + * Threads will spin in HMT_LOW until the lock bit is cleared. + * r14 - pointer to core_idle_state + * r15 - used to load contents of core_idle_state + */ + +core_idle_lock_held: + HMT_LOW +3: lwz r15,0(r14) + andi. r15,r15,PNV_CORE_IDLE_LOCK_BIT + bne 3b + HMT_MEDIUM + lwarx r15,0,r14 + blr + +/* * Pass requested state in r3: * r3 - PNV_THREAD_NAP/SLEEP/WINKLE * @@ -149,6 +165,10 @@ power7_enter_nap_mode: ld r14,PACA_CORE_IDLE_STATE_PTR(r13) lwarx_loop1: lwarx r15,0,r14 + + andi. r9,r15,PNV_CORE_IDLE_LOCK_BIT + bnel core_idle_lock_held + andc r15,r15,r7 /* Clear thread bit */ andi. r15,r15,PNV_CORE_IDLE_THREAD_BITS @@ -293,7 +313,7 @@ lwarx_loop2: * workaround undo code or resyncing timebase or restoring context * In either case loop until the lock bit is cleared. */ - bne core_idle_lock_held + bnel core_idle_lock_held cmpwi cr2,r15,0 lbz r4,PACA_SUBCORE_SIBLING_MASK(r13) @@ -318,15 +338,6 @@ lwarx_loop2: isync b common_exit -core_idle_lock_held: - HMT_LOW -core_idle_lock_loop: - lwz r15,0(14) - andi. r9,r15,PNV_CORE_IDLE_LOCK_BIT - bne core_idle_lock_loop - HMT_MEDIUM - b lwarx_loop2 - first_thread_in_subcore: /* First thread in subcore to wakeup */ ori r15,r15,PNV_CORE_IDLE_LOCK_BIT -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[3.19.y-ckt stable] Linux 3.19.8-ckt5 stable review Kamal Mostafa <kamal@canonical.com> - 2015-08-05 23:50 +0200
[PATCH 3.19.y-ckt 086/107] staging: vt6656: check ieee80211_bss_conf bssid not NULL Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 098/107] net: call rcu_read_lock early in process_backlog Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 094/107] ARM: 8404/1: dma-mapping: fix off-by-one error in bitmap size check Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 091/107] drm/radeon: fix user ptr race condition Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 079/107] can: c_can: Fix default pinmux glitch at init Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 088/107] scsi: fix host max depth checking for the 'queue_depth' sysfs interface Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 103/107] net: graceful exit from netif_alloc_netdev_queues() Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 077/107] Btrfs: fix list transaction->pending_ordered corruption Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 100/107] bridge: mdb: start delete timer for temp static entries Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 081/107] ARC: make sure instruction_pointer() returns unsigned value Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 080/107] ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 104/107] net: dsa: Fix off-by-one in switch address parsing Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 092/107] drm/radeon/ci: silence a harmless PCC warning Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 085/107] staging: vt6655: check ieee80211_bss_conf bssid not NULL Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 089/107] drm/radeon: add a dpm quirk for Sapphire Radeon R9 270X 2GB GDDR5 Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 084/107] Btrfs: fix file corruption after cloning inline extents Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 096/107] fsnotify: fix oops in fsnotify_clear_marks_by_group_flags() Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
Re: [PATCH 3.19.y-ckt 096/107] fsnotify: fix oops in fsnotify_clear_marks_by_group_flags() Jan Kara <jack@suse.cz> - 2015-08-06 17:20 +0200
Re: [PATCH 3.19.y-ckt 096/107] fsnotify: fix oops in fsnotify_clear_marks_by_group_flags() Kamal Mostafa <kamal@canonical.com> - 2015-08-06 18:00 +0200
[PATCH 3.19.y-ckt 001/107] ieee802154: Fix sockaddr_ieee802154 implicit padding information leak. Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 011/107] KEYS: ensure we free the assoc array edit if edit is valid Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 083/107] Revert "drm/i915: Declare the swizzling unknown for L-shaped configurations" Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 063/107] USB: cp210x: add ID for Aruba Networks controllers Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 105/107] perf hists browser: Take the --comm, --dsos, etc filters into account Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 095/107] dma-debug: skip debug_dma_assert_idle() when disabled Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 087/107] st: null pointer dereference panic caused by use after kref_put by st_open Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 082/107] s390/process: fix sfpc inline assembly Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 090/107] drm/radeon: Don't flush the GART TLB if rdev->gart.ptr == NULL Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 106/107] net: dsa: Test array index before use Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 066/107] usb: f_mass_storage: limit number of reported LUNs Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 073/107] drivers: net: cpsw: fix crash while accessing second slave ethernet interface Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 107/107] rds: rds_ib_device.refcount overflow Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 097/107] ipv6: Make MLD packets to only be processed locally Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 099/107] ip_tunnel: fix ipv4 pmtu check to honor inner ip header df Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 093/107] genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 102/107] net: do not process device backlog during unregistration Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 101/107] bridge: mdb: zero out the local br_ip variable before use Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:00 +0200
[PATCH 3.19.y-ckt 004/107] x86/asm/entry/64: Remove a redundant jump Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 060/107] ARC: Override toplevel default -O2 with -O3 Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 071/107] ARM: dts: mx23: fix iio-hwmon support Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 069/107] drm: add a check for x/y in drm_mode_setcrtc Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 064/107] dm btree: silence lockdep lock inversion in dm_btree_del() Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 054/107] iio: light: tcs3414: Fix bug preventing to set integration time Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 068/107] drm/rockchip: use drm_gem_mmap helpers Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 062/107] USB: option: add 2020:4000 ID Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 076/107] Btrfs: fix memory leak in the extent_same ioctl Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 067/107] s390/sclp: clear upper register halves in _sclp_print_early Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 052/107] iio: DAC: ad5624r_spi: fix bit shift of output data value Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 070/107] bio integrity: do not assume bio_integrity_pool exists if bioset exists Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 051/107] iio: inv-mpu: Specify the expected format/precision for write channels Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 056/107] iio: tmp006: Check channel info on write Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 075/107] KVM: VMX: fix vmwrite to invalid VMCS Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 048/107] drivers: clk: st: Fix flexgen lock init Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 027/107] drm/i915: Declare the swizzling unknown for L-shaped configurations Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
Re: [PATCH 3.19.y-ckt 027/107] drm/i915: Declare the swizzling unknown for L-shaped configurations Kamal Mostafa <kamal@canonical.com> - 2015-08-06 19:00 +0200
[PATCH 3.19.y-ckt 061/107] crypto: omap-des - Fix unmapping of dma channels Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 072/107] tracing: Have branch tracer use recursive field of task struct Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 078/107] can: rcar_can: fix IRQ check Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 065/107] usb: musb: host: rely on port_mode to call musb_start() Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 003/107] x86/asm/entry/64: Fold the 'test_in_nmi' macro into its only user Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 049/107] iio: adc: rockchip_saradc: add missing MODULE_* data Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 058/107] dm thin: allocate the cell_sort_array dynamically Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 059/107] kbuild: Allow arch Makefiles to override {cpp,ld,c}flags Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 047/107] ARM: 8393/1: smp: Fix suspicious RCU usage with ipi tracepoints Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 057/107] dm btree remove: fix bug in redistribute3 Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 050/107] iio: twl4030-madc: Pass the IRQF_ONESHOT flag Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 053/107] iio: adc: at91_adc: allow to use full range of startup time Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 055/107] ALSA: usb-audio: Add MIDI support for Steinberg MI2/MI4 Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 074/107] USB: serial: Destroy serial_minors IDR on module exit Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:10 +0200
[PATCH 3.19.y-ckt 021/107] ext4: replace open coded nofail allocation in ext4_free_blocks() Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 032/107] MIPS: kernel: cps-vec: Replace KSEG0 with CKSEG0 Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 043/107] freeing unlinked file indefinitely delayed Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 023/107] ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 034/107] drm/radeon: Clean up reference counting and pinning of the cursor BOs Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 036/107] mm: avoid setting up anonymous pages into file mapping Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 020/107] ext4: correctly migrate a file with a hole at the beginning Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 042/107] 9p: don't leave a half-initialized inode sitting around Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 040/107] cxl: Check if afu is not null in cxl_slbia Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 022/107] ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2 Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 028/107] MIPS: kernel: smp-cps: Fix 64-bit compatibility errors due to pointer casting Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 039/107] hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 029/107] MIPS: kernel: cps-vec: Replace 'la' macro with PTR_LA Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 017/107] ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 037/107] selinux: don't waste ebitmap space when importing NetLabel categories Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 015/107] Btrfs: fix fsync data loss after append write Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 031/107] MIPS: kernel: cps-vec: Use ta0-ta3 pseudo-registers for 64-bit Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 044/107] clk: qcom: Use parent rate when set rate to pixel RCG clock Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 018/107] ext4: fix reservation release on invalidatepage for delalloc fs Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 019/107] ext4: be more strict when migrating to non-extent based file Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 035/107] drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2) Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 026/107] drm/radeon: fix HDP flushing Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 030/107] MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2 Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 033/107] MIPS: cps-vec: Use macros for various arithmetics and memory operations Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 045/107] drivers: clk: st: Incorrect register offset used for lock_status Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 046/107] drivers: clk: st: Fix mux bit-setting for Cortex A9 clocks Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 038/107] hpfs: kstrdup() out of memory handling Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 025/107] cxl: Fix off by one error allowing subsequent mmap page to be accessed Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 041/107] parisc: Fix some PTE/TLB race conditions and optimize __flush_tlb_range based on timing results Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 024/107] powerpc/powernv: Fix race in updating core_idle_state Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:20 +0200
[PATCH 3.19.y-ckt 016/107] bufferhead: Add _gfp version for sb_getblk() Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 013/107] Btrfs: use kmem_cache_free when freeing entry in inode cache Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 006/107] x86/nmi/64: Remove asm code that saves cr2 Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 008/107] x86/nmi/64: Improve nested NMI comments Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 012/107] sg_start_req(): make sure that there's not too many elements in iovec Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 005/107] x86/nmi: Enable nested do_nmi handling for 64-bit kernels Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 007/107] x86/nmi/64: Switch stacks on userspace NMI entry Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 002/107] evm: labeling pseudo filesystems exception Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 014/107] Btrfs: fix race between caching kthread and returning inode to inode cache Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 009/107] x86/nmi/64: Reorder nested NMI checks Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
[PATCH 3.19.y-ckt 010/107] x86/nmi/64: Use DF to avoid userspace RSP confusing nested NMI detection Kamal Mostafa <kamal@canonical.com> - 2015-08-06 00:30 +0200
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