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| author | Junaid Shahid <junaids@google.com> | 2019-01-03 17:14:28 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-12 19:21:40 +0100 |
| commit | 30d8d8d6cd928b5bc8547aca6d8eb30b334d5451 (patch) | |
| tree | 6b2dc2de789dc9b2da9315017d8b7fc484178106 /arch/s390 | |
| parent | a991063ce57684a2259688886643cf1c430f8188 (diff) | |
| download | linux-stable-30d8d8d6cd928b5bc8547aca6d8eb30b334d5451.tar.gz linux-stable-30d8d8d6cd928b5bc8547aca6d8eb30b334d5451.tar.bz2 linux-stable-30d8d8d6cd928b5bc8547aca6d8eb30b334d5451.zip | |
kvm: Convert kvm_lock to a mutex
commit 0d9ce162cf46c99628cc5da9510b959c7976735b upstream.
It doesn't seem as if there is any particular need for kvm_lock to be a
spinlock, so convert the lock to a mutex so that sleepable functions (in
particular cond_resched()) can be called while holding it.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index fac1d4eaa426..3c317bc6b799 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2110,13 +2110,13 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) kvm->arch.sca = (struct bsca_block *) get_zeroed_page(alloc_flags); if (!kvm->arch.sca) goto out_err; - spin_lock(&kvm_lock); + mutex_lock(&kvm_lock); sca_offset += 16; if (sca_offset + sizeof(struct bsca_block) > PAGE_SIZE) sca_offset = 0; kvm->arch.sca = (struct bsca_block *) ((char *) kvm->arch.sca + sca_offset); - spin_unlock(&kvm_lock); + mutex_unlock(&kvm_lock); sprintf(debug_name, "kvm-%u", current->pid); |