Revision ea753d81
| ID | ea753d81e8b085d679f13e4a6023e003e9854d51 |
seqlock: introduce read-write seqlock
Seqlock implementation for QEMU. Usage idiom
reader:
do {
start = seqlock_read_begin(&sl);
...
} while (seqlock_read_retry(&sl, start));
writer:
seqlock_write_lock(&sl);
...
seqlock_write_unlock(&sl);
initialization:
seqlock_init(QemuSeqLock *sl, QemuMutex *mutex)
mutex could be NULL if the caller will provide its own protection
for concurrent write sides (typically using the BQL).Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Files
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