if (test_bit(FSCACHE_OP_WAITING, &op->op.flags)) {
_debug(">>> WT");
fscache_stat(&fscache_n_retrieval_op_waits);
- wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
- fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+ if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
+ fscache_wait_bit_interruptible,
+ TASK_INTERRUPTIBLE) < 0) {
+ ret = fscache_cancel_op(&op->op);
+ if (ret == 0) {
+ ret = -ERESTARTSYS;
+ goto error;
+ }
+
+ /* it's been removed from the pending queue by another
+ * party, so we should get to run shortly */
+ wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
+ fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+ }
_debug("<<< GO");
}
fscache_stat_d(&fscache_n_cop_read_or_alloc_page);
}
+error:
if (ret == -ENOMEM)
fscache_stat(&fscache_n_retrievals_nomem);
else if (ret == -ERESTARTSYS)
if (test_bit(FSCACHE_OP_WAITING, &op->op.flags)) {
_debug(">>> WT");
fscache_stat(&fscache_n_retrieval_op_waits);
- wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
- fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+ if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
+ fscache_wait_bit_interruptible,
+ TASK_INTERRUPTIBLE) < 0) {
+ ret = fscache_cancel_op(&op->op);
+ if (ret == 0) {
+ ret = -ERESTARTSYS;
+ goto error;
+ }
+
+ /* it's been removed from the pending queue by another
+ * party, so we should get to run shortly */
+ wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
+ fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+ }
_debug("<<< GO");
}
fscache_stat_d(&fscache_n_cop_read_or_alloc_pages);
}
+error:
if (ret == -ENOMEM)
fscache_stat(&fscache_n_retrievals_nomem);
else if (ret == -ERESTARTSYS)
if (test_bit(FSCACHE_OP_WAITING, &op->op.flags)) {
_debug(">>> WT");
fscache_stat(&fscache_n_alloc_op_waits);
- wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
- fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+ if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
+ fscache_wait_bit_interruptible,
+ TASK_INTERRUPTIBLE) < 0) {
+ ret = fscache_cancel_op(&op->op);
+ if (ret == 0) {
+ ret = -ERESTARTSYS;
+ goto error;
+ }
+
+ /* it's been removed from the pending queue by another
+ * party, so we should get to run shortly */
+ wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
+ fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+ }
_debug("<<< GO");
}
ret = object->cache->ops->allocate_page(op, page, gfp);
fscache_stat_d(&fscache_n_cop_allocate_page);
- if (ret < 0)
+error:
+ if (ret == -ERESTARTSYS)
+ fscache_stat(&fscache_n_allocs_intr);
+ else if (ret < 0)
fscache_stat(&fscache_n_allocs_nobufs);
else
fscache_stat(&fscache_n_allocs_ok);