search for: arch_spin_lock_wait

...,0,%1" : : "d" (old), "Q" (*lock)); > } > > -static inline int cpu_is_preempted(int cpu) > -{ > - if (test_cpu_flag_of(CIF_ENABLED_WAIT, cpu)) > - return 0; > - if (smp_vcpu_scheduled(cpu)) > - return 0; > - return 1; > -} > - > void arch_spin_lock_wait(arch_spinlock_t *lp) > { > unsigned int cpu = SPINLOCK_LOCKVAL; > @@ -62,7 +53,7 @@ void arch_spin_lock_wait(arch_spinlock_t *lp) > continue; > } > /* First iteration: check if the lock owner is running. */ > - if (first_diag && cpu_is_preempted(~owner)) {...

...,0,%1" : : "d" (old), "Q" (*lock)); > } > > -static inline int cpu_is_preempted(int cpu) > -{ > - if (test_cpu_flag_of(CIF_ENABLED_WAIT, cpu)) > - return 0; > - if (smp_vcpu_scheduled(cpu)) > - return 0; > - return 1; > -} > - > void arch_spin_lock_wait(arch_spinlock_t *lp) > { > unsigned int cpu = SPINLOCK_LOCKVAL; > @@ -62,7 +53,7 @@ void arch_spin_lock_wait(arch_spinlock_t *lp) > continue; > } > /* First iteration: check if the lock owner is running. */ > - if (first_diag && cpu_is_preempted(~owner)) {...

..., unsigned int old) asm(".insn rsy,0xeb0000000022,%0,0,%1" : : "d" (old), "Q" (*lock)); } -static inline int cpu_is_preempted(int cpu) -{ - if (test_cpu_flag_of(CIF_ENABLED_WAIT, cpu)) - return 0; - if (smp_vcpu_scheduled(cpu)) - return 0; - return 1; -} - void arch_spin_lock_wait(arch_spinlock_t *lp) { unsigned int cpu = SPINLOCK_LOCKVAL; @@ -62,7 +53,7 @@ void arch_spin_lock_wait(arch_spinlock_t *lp) continue; } /* First iteration: check if the lock owner is running. */ - if (first_diag && cpu_is_preempted(~owner)) { + if (first_diag && arch_...

..., unsigned int old) asm(".insn rsy,0xeb0000000022,%0,0,%1" : : "d" (old), "Q" (*lock)); } -static inline int cpu_is_preempted(int cpu) -{ - if (test_cpu_flag_of(CIF_ENABLED_WAIT, cpu)) - return 0; - if (smp_vcpu_scheduled(cpu)) - return 0; - return 1; -} - void arch_spin_lock_wait(arch_spinlock_t *lp) { unsigned int cpu = SPINLOCK_LOCKVAL; @@ -62,7 +53,7 @@ void arch_spin_lock_wait(arch_spinlock_t *lp) continue; } /* First iteration: check if the lock owner is running. */ - if (first_diag && cpu_is_preempted(~owner)) { + if (first_diag && arch_...

...001 0x0000000000000010 0x00000000000001ae 0x000000000000000f 0x000002aa46056010 0x000002aa460681c0 0x000003ffd867d590 0x000003ffdca7c818 0x000003ffd867d58f 0x000003fff6ffdc60 0x000003ffd867dad8 0x000003ffdca7c5e8 0x000003ffd867dadc 0x000003ffdca7c818 #0 [3e00035faf8] arch_spin_lock_wait at a7bd52 #1 [3e00035fb50] ccw_io_helper at 9130ea #2 [3e00035fbd0] virtio_ccw_get_config at 914a28 #3 [3e00035fc30] virtballoon_changed at 76e776 #4 [3e00035fc70] virtio_config_changed at 76aabc #5 [3e00035fca8] virtio_ccw_int_handler at 914ede #6 [3e00035fd18] ccw_device_irq at 8941d4 #7 [...

change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code change, fix typos, update some comments change from v1: a simplier definition of default vcpu_is_preempted skip mahcine type check on ppc,

change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code change, fix typos, update some comments change from v1: a simplier definition of default vcpu_is_preempted skip mahcine type check on ppc,

change from v6: fix typos and remove uncessary comments. change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3:

change from v6: fix typos and remove uncessary comments. change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3:

change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code

change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code

Some vqs don't need to be allocated when the related feature bits are disabled. Callers notice the vq allocation layer by setting the related names[i] to be NULL. This patch series fixes the find_vqs implementations to handle this case. Wei Wang (2): virtio_pci: use queue idx instead of array idx to set up the vq virtio: don't allocate vqs when names[i] = NULL

Some vqs don't need to be allocated when the related feature bits are disabled. Callers notice the vq allocation layer by setting the related names[i] to be NULL. This patch series fixes the find_vqs implementations to handle this case. Wei Wang (2): virtio_pci: use queue idx instead of array idx to set up the vq virtio: don't allocate vqs when names[i] = NULL