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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-03 21:57:53 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-03 21:57:53 +0200
commit776edb59317ada867dfcddde40b55648beeb0078 (patch)
treef6a6136374642323cfefd7d6399ea429f9018ade /drivers/pci
parentMerge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kerne... (diff)
parentrwsem: Add comments to explain the meaning of the rwsem's count field (diff)
downloadlinux-776edb59317ada867dfcddde40b55648beeb0078.tar.xz
linux-776edb59317ada867dfcddde40b55648beeb0078.zip
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
Pull core locking updates from Ingo Molnar: "The main changes in this cycle were: - reduced/streamlined smp_mb__*() interface that allows more usecases and makes the existing ones less buggy, especially in rarer architectures - add rwsem implementation comments - bump up lockdep limits" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) rwsem: Add comments to explain the meaning of the rwsem's count field lockdep: Increase static allocations arch: Mass conversion of smp_mb__*() arch,doc: Convert smp_mb__*() arch,xtensa: Convert smp_mb__*() arch,x86: Convert smp_mb__*() arch,tile: Convert smp_mb__*() arch,sparc: Convert smp_mb__*() arch,sh: Convert smp_mb__*() arch,score: Convert smp_mb__*() arch,s390: Convert smp_mb__*() arch,powerpc: Convert smp_mb__*() arch,parisc: Convert smp_mb__*() arch,openrisc: Convert smp_mb__*() arch,mn10300: Convert smp_mb__*() arch,mips: Convert smp_mb__*() arch,metag: Convert smp_mb__*() arch,m68k: Convert smp_mb__*() arch,m32r: Convert smp_mb__*() arch,ia64: Convert smp_mb__*() ...
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/xen-pcifront.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 179b8edc2262..53df39a22c8a 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -662,9 +662,9 @@ static void pcifront_do_aer(struct work_struct *data)
notify_remote_via_evtchn(pdev->evtchn);
/*in case of we lost an aer request in four lines time_window*/
- smp_mb__before_clear_bit();
+ smp_mb__before_atomic();
clear_bit(_PDEVB_op_active, &pdev->flags);
- smp_mb__after_clear_bit();
+ smp_mb__after_atomic();
schedule_pcifront_aer_op(pdev);