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-rw-r--r--block/blk-mq-cpu.c37
-rw-r--r--block/blk-mq.c74
-rw-r--r--block/blk-mq.h1
-rw-r--r--block/blk-throttle.c35
-rw-r--r--block/cfq-iosched.c131
-rw-r--r--block/cmdline-parser.c18
-rw-r--r--block/scsi_ioctl.c6
7 files changed, 103 insertions, 199 deletions
diff --git a/block/blk-mq-cpu.c b/block/blk-mq-cpu.c
index 0045ace9bdf0..3146befb56aa 100644
--- a/block/blk-mq-cpu.c
+++ b/block/blk-mq-cpu.c
@@ -28,36 +28,6 @@ static int blk_mq_main_cpu_notify(struct notifier_block *self,
return NOTIFY_OK;
}
-static void blk_mq_cpu_notify(void *data, unsigned long action,
- unsigned int cpu)
-{
- if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
- /*
- * If the CPU goes away, ensure that we run any pending
- * completions.
- */
- struct llist_node *node;
- struct request *rq;
-
- local_irq_disable();
-
- node = llist_del_all(&per_cpu(ipi_lists, cpu));
- while (node) {
- struct llist_node *next = node->next;
-
- rq = llist_entry(node, struct request, ll_list);
- __blk_mq_end_io(rq, rq->errors);
- node = next;
- }
-
- local_irq_enable();
- }
-}
-
-static struct notifier_block __cpuinitdata blk_mq_main_cpu_notifier = {
- .notifier_call = blk_mq_main_cpu_notify,
-};
-
void blk_mq_register_cpu_notifier(struct blk_mq_cpu_notifier *notifier)
{
BUG_ON(!notifier->notify);
@@ -82,12 +52,7 @@ void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier *notifier,
notifier->data = data;
}
-static struct blk_mq_cpu_notifier __cpuinitdata cpu_notifier = {
- .notify = blk_mq_cpu_notify,
-};
-
void __init blk_mq_cpu_init(void)
{
- register_hotcpu_notifier(&blk_mq_main_cpu_notifier);
- blk_mq_register_cpu_notifier(&cpu_notifier);
+ hotcpu_notifier(blk_mq_main_cpu_notify, 0);
}
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 473ce4039060..57039fcd9c93 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -27,8 +27,6 @@ static LIST_HEAD(all_q_list);
static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx);
-DEFINE_PER_CPU(struct llist_head, ipi_lists);
-
static struct blk_mq_ctx *__blk_mq_get_ctx(struct request_queue *q,
unsigned int cpu)
{
@@ -339,55 +337,12 @@ void __blk_mq_end_io(struct request *rq, int error)
blk_mq_complete_request(rq, error);
}
-#if defined(CONFIG_SMP)
-
-/*
- * Called with interrupts disabled.
- */
-static void ipi_end_io(void *data)
+static void blk_mq_end_io_remote(void *data)
{
- struct llist_head *list = &per_cpu(ipi_lists, smp_processor_id());
- struct llist_node *entry, *next;
- struct request *rq;
-
- entry = llist_del_all(list);
-
- while (entry) {
- next = entry->next;
- rq = llist_entry(entry, struct request, ll_list);
- __blk_mq_end_io(rq, rq->errors);
- entry = next;
- }
-}
-
-static int ipi_remote_cpu(struct blk_mq_ctx *ctx, const int cpu,
- struct request *rq, const int error)
-{
- struct call_single_data *data = &rq->csd;
-
- rq->errors = error;
- rq->ll_list.next = NULL;
-
- /*
- * If the list is non-empty, an existing IPI must already
- * be "in flight". If that is the case, we need not schedule
- * a new one.
- */
- if (llist_add(&rq->ll_list, &per_cpu(ipi_lists, ctx->cpu))) {
- data->func = ipi_end_io;
- data->flags = 0;
- __smp_call_function_single(ctx->cpu, data, 0);
- }
+ struct request *rq = data;
- return true;
+ __blk_mq_end_io(rq, rq->errors);
}
-#else /* CONFIG_SMP */
-static int ipi_remote_cpu(struct blk_mq_ctx *ctx, const int cpu,
- struct request *rq, const int error)
-{
- return false;
-}
-#endif
/*
* End IO on this request on a multiqueue enabled driver. We'll either do
@@ -403,11 +358,15 @@ void blk_mq_end_io(struct request *rq, int error)
return __blk_mq_end_io(rq, error);
cpu = get_cpu();
-
- if (cpu == ctx->cpu || !cpu_online(ctx->cpu) ||
- !ipi_remote_cpu(ctx, cpu, rq, error))
+ if (cpu != ctx->cpu && cpu_online(ctx->cpu)) {
+ rq->errors = error;
+ rq->csd.func = blk_mq_end_io_remote;
+ rq->csd.info = rq;
+ rq->csd.flags = 0;
+ __smp_call_function_single(ctx->cpu, &rq->csd, 0);
+ } else {
__blk_mq_end_io(rq, error);
-
+ }
put_cpu();
}
EXPORT_SYMBOL(blk_mq_end_io);
@@ -1104,8 +1063,8 @@ static void blk_mq_free_rq_map(struct blk_mq_hw_ctx *hctx)
struct page *page;
while (!list_empty(&hctx->page_list)) {
- page = list_first_entry(&hctx->page_list, struct page, list);
- list_del_init(&page->list);
+ page = list_first_entry(&hctx->page_list, struct page, lru);
+ list_del_init(&page->lru);
__free_pages(page, page->private);
}
@@ -1169,7 +1128,7 @@ static int blk_mq_init_rq_map(struct blk_mq_hw_ctx *hctx,
break;
page->private = this_order;
- list_add_tail(&page->list, &hctx->page_list);
+ list_add_tail(&page->lru, &hctx->page_list);
p = page_address(page);
entries_per_page = order_to_size(this_order) / rq_size;
@@ -1506,11 +1465,6 @@ static int blk_mq_queue_reinit_notify(struct notifier_block *nb,
static int __init blk_mq_init(void)
{
- unsigned int i;
-
- for_each_possible_cpu(i)
- init_llist_head(&per_cpu(ipi_lists, i));
-
blk_mq_cpu_init();
/* Must be called after percpu_counter_hotcpu_callback() */
diff --git a/block/blk-mq.h b/block/blk-mq.h
index e151a2f4f171..5c3917984b00 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -40,7 +40,6 @@ void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier *notifier,
void blk_mq_register_cpu_notifier(struct blk_mq_cpu_notifier *notifier);
void blk_mq_unregister_cpu_notifier(struct blk_mq_cpu_notifier *notifier);
void blk_mq_cpu_init(void);
-DECLARE_PER_CPU(struct llist_head, ipi_lists);
/*
* CPU -> queue mappings
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 20f820037775..1474c3ab7e72 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1303,13 +1303,10 @@ static u64 tg_prfill_cpu_rwstat(struct seq_file *sf,
return __blkg_prfill_rwstat(sf, pd, &rwstat);
}
-static int tg_print_cpu_rwstat(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int tg_print_cpu_rwstat(struct seq_file *sf, void *v)
{
- struct blkcg *blkcg = css_to_blkcg(css);
-
- blkcg_print_blkgs(sf, blkcg, tg_prfill_cpu_rwstat, &blkcg_policy_throtl,
- cft->private, true);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)), tg_prfill_cpu_rwstat,
+ &blkcg_policy_throtl, seq_cft(sf)->private, true);
return 0;
}
@@ -1335,19 +1332,17 @@ static u64 tg_prfill_conf_uint(struct seq_file *sf, struct blkg_policy_data *pd,
return __blkg_prfill_u64(sf, pd, v);
}
-static int tg_print_conf_u64(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int tg_print_conf_u64(struct seq_file *sf, void *v)
{
- blkcg_print_blkgs(sf, css_to_blkcg(css), tg_prfill_conf_u64,
- &blkcg_policy_throtl, cft->private, false);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)), tg_prfill_conf_u64,
+ &blkcg_policy_throtl, seq_cft(sf)->private, false);
return 0;
}
-static int tg_print_conf_uint(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int tg_print_conf_uint(struct seq_file *sf, void *v)
{
- blkcg_print_blkgs(sf, css_to_blkcg(css), tg_prfill_conf_uint,
- &blkcg_policy_throtl, cft->private, false);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)), tg_prfill_conf_uint,
+ &blkcg_policy_throtl, seq_cft(sf)->private, false);
return 0;
}
@@ -1428,40 +1423,40 @@ static struct cftype throtl_files[] = {
{
.name = "throttle.read_bps_device",
.private = offsetof(struct throtl_grp, bps[READ]),
- .read_seq_string = tg_print_conf_u64,
+ .seq_show = tg_print_conf_u64,
.write_string = tg_set_conf_u64,
.max_write_len = 256,
},
{
.name = "throttle.write_bps_device",
.private = offsetof(struct throtl_grp, bps[WRITE]),
- .read_seq_string = tg_print_conf_u64,
+ .seq_show = tg_print_conf_u64,
.write_string = tg_set_conf_u64,
.max_write_len = 256,
},
{
.name = "throttle.read_iops_device",
.private = offsetof(struct throtl_grp, iops[READ]),
- .read_seq_string = tg_print_conf_uint,
+ .seq_show = tg_print_conf_uint,
.write_string = tg_set_conf_uint,
.max_write_len = 256,
},
{
.name = "throttle.write_iops_device",
.private = offsetof(struct throtl_grp, iops[WRITE]),
- .read_seq_string = tg_print_conf_uint,
+ .seq_show = tg_print_conf_uint,
.write_string = tg_set_conf_uint,
.max_write_len = 256,
},
{
.name = "throttle.io_service_bytes",
.private = offsetof(struct tg_stats_cpu, service_bytes),
- .read_seq_string = tg_print_cpu_rwstat,
+ .seq_show = tg_print_cpu_rwstat,
},
{
.name = "throttle.io_serviced",
.private = offsetof(struct tg_stats_cpu, serviced),
- .read_seq_string = tg_print_cpu_rwstat,
+ .seq_show = tg_print_cpu_rwstat,
},
{ } /* terminate */
};
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 4d5cec1ad80d..744833b630c6 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1632,11 +1632,11 @@ static u64 cfqg_prfill_weight_device(struct seq_file *sf,
return __blkg_prfill_u64(sf, pd, cfqg->dev_weight);
}
-static int cfqg_print_weight_device(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int cfqg_print_weight_device(struct seq_file *sf, void *v)
{
- blkcg_print_blkgs(sf, css_to_blkcg(css), cfqg_prfill_weight_device,
- &blkcg_policy_cfq, 0, false);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ cfqg_prfill_weight_device, &blkcg_policy_cfq,
+ 0, false);
return 0;
}
@@ -1650,26 +1650,23 @@ static u64 cfqg_prfill_leaf_weight_device(struct seq_file *sf,
return __blkg_prfill_u64(sf, pd, cfqg->dev_leaf_weight);
}
-static int cfqg_print_leaf_weight_device(struct cgroup_subsys_state *css,
- struct cftype *cft,
- struct seq_file *sf)
+static int cfqg_print_leaf_weight_device(struct seq_file *sf, void *v)
{
- blkcg_print_blkgs(sf, css_to_blkcg(css), cfqg_prfill_leaf_weight_device,
- &blkcg_policy_cfq, 0, false);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ cfqg_prfill_leaf_weight_device, &blkcg_policy_cfq,
+ 0, false);
return 0;
}
-static int cfq_print_weight(struct cgroup_subsys_state *css, struct cftype *cft,
- struct seq_file *sf)
+static int cfq_print_weight(struct seq_file *sf, void *v)
{
- seq_printf(sf, "%u\n", css_to_blkcg(css)->cfq_weight);
+ seq_printf(sf, "%u\n", css_to_blkcg(seq_css(sf))->cfq_weight);
return 0;
}
-static int cfq_print_leaf_weight(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int cfq_print_leaf_weight(struct seq_file *sf, void *v)
{
- seq_printf(sf, "%u\n", css_to_blkcg(css)->cfq_leaf_weight);
+ seq_printf(sf, "%u\n", css_to_blkcg(seq_css(sf))->cfq_leaf_weight);
return 0;
}
@@ -1762,23 +1759,17 @@ static int cfq_set_leaf_weight(struct cgroup_subsys_state *css,
return __cfq_set_weight(css, cft, val, true);
}
-static int cfqg_print_stat(struct cgroup_subsys_state *css, struct cftype *cft,
- struct seq_file *sf)
+static int cfqg_print_stat(struct seq_file *sf, void *v)
{
- struct blkcg *blkcg = css_to_blkcg(css);
-
- blkcg_print_blkgs(sf, blkcg, blkg_prfill_stat, &blkcg_policy_cfq,
- cft->private, false);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)), blkg_prfill_stat,
+ &blkcg_policy_cfq, seq_cft(sf)->private, false);
return 0;
}
-static int cfqg_print_rwstat(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int cfqg_print_rwstat(struct seq_file *sf, void *v)
{
- struct blkcg *blkcg = css_to_blkcg(css);
-
- blkcg_print_blkgs(sf, blkcg, blkg_prfill_rwstat, &blkcg_policy_cfq,
- cft->private, true);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)), blkg_prfill_rwstat,
+ &blkcg_policy_cfq, seq_cft(sf)->private, true);
return 0;
}
@@ -1798,23 +1789,19 @@ static u64 cfqg_prfill_rwstat_recursive(struct seq_file *sf,
return __blkg_prfill_rwstat(sf, pd, &sum);
}
-static int cfqg_print_stat_recursive(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int cfqg_print_stat_recursive(struct seq_file *sf, void *v)
{
- struct blkcg *blkcg = css_to_blkcg(css);
-
- blkcg_print_blkgs(sf, blkcg, cfqg_prfill_stat_recursive,
- &blkcg_policy_cfq, cft->private, false);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ cfqg_prfill_stat_recursive, &blkcg_policy_cfq,
+ seq_cft(sf)->private, false);
return 0;
}
-static int cfqg_print_rwstat_recursive(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int cfqg_print_rwstat_recursive(struct seq_file *sf, void *v)
{
- struct blkcg *blkcg = css_to_blkcg(css);
-
- blkcg_print_blkgs(sf, blkcg, cfqg_prfill_rwstat_recursive,
- &blkcg_policy_cfq, cft->private, true);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ cfqg_prfill_rwstat_recursive, &blkcg_policy_cfq,
+ seq_cft(sf)->private, true);
return 0;
}
@@ -1835,13 +1822,11 @@ static u64 cfqg_prfill_avg_queue_size(struct seq_file *sf,
}
/* print avg_queue_size */
-static int cfqg_print_avg_queue_size(struct cgroup_subsys_state *css,
- struct cftype *cft, struct seq_file *sf)
+static int cfqg_print_avg_queue_size(struct seq_file *sf, void *v)
{
- struct blkcg *blkcg = css_to_blkcg(css);
-
- blkcg_print_blkgs(sf, blkcg, cfqg_prfill_avg_queue_size,
- &blkcg_policy_cfq, 0, false);
+ blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)),
+ cfqg_prfill_avg_queue_size, &blkcg_policy_cfq,
+ 0, false);
return 0;
}
#endif /* CONFIG_DEBUG_BLK_CGROUP */
@@ -1851,14 +1836,14 @@ static struct cftype cfq_blkcg_files[] = {
{
.name = "weight_device",
.flags = CFTYPE_ONLY_ON_ROOT,
- .read_seq_string = cfqg_print_leaf_weight_device,
+ .seq_show = cfqg_print_leaf_weight_device,
.write_string = cfqg_set_leaf_weight_device,
.max_write_len = 256,
},
{
.name = "weight",
.flags = CFTYPE_ONLY_ON_ROOT,
- .read_seq_string = cfq_print_leaf_weight,
+ .seq_show = cfq_print_leaf_weight,
.write_u64 = cfq_set_leaf_weight,
},
@@ -1866,26 +1851,26 @@ static struct cftype cfq_blkcg_files[] = {
{
.name = "weight_device",
.flags = CFTYPE_NOT_ON_ROOT,
- .read_seq_string = cfqg_print_weight_device,
+ .seq_show = cfqg_print_weight_device,
.write_string = cfqg_set_weight_device,
.max_write_len = 256,
},
{
.name = "weight",
.flags = CFTYPE_NOT_ON_ROOT,
- .read_seq_string = cfq_print_weight,
+ .seq_show = cfq_print_weight,
.write_u64 = cfq_set_weight,
},
{
.name = "leaf_weight_device",
- .read_seq_string = cfqg_print_leaf_weight_device,
+ .seq_show = cfqg_print_leaf_weight_device,
.write_string = cfqg_set_leaf_weight_device,
.max_write_len = 256,
},
{
.name = "leaf_weight",
- .read_seq_string = cfq_print_leaf_weight,
+ .seq_show = cfq_print_leaf_weight,
.write_u64 = cfq_set_leaf_weight,
},
@@ -1893,114 +1878,114 @@ static struct cftype cfq_blkcg_files[] = {
{
.name = "time",
.private = offsetof(struct cfq_group, stats.time),
- .read_seq_string = cfqg_print_stat,
+ .seq_show = cfqg_print_stat,
},
{
.name = "sectors",
.private = offsetof(struct cfq_group, stats.sectors),
- .read_seq_string = cfqg_print_stat,
+ .seq_show = cfqg_print_stat,
},
{
.name = "io_service_bytes",
.private = offsetof(struct cfq_group, stats.service_bytes),
- .read_seq_string = cfqg_print_rwstat,
+ .seq_show = cfqg_print_rwstat,
},
{
.name = "io_serviced",
.private = offsetof(struct cfq_group, stats.serviced),
- .read_seq_string = cfqg_print_rwstat,
+ .seq_show = cfqg_print_rwstat,
},
{
.name = "io_service_time",
.private = offsetof(struct cfq_group, stats.service_time),
- .read_seq_string = cfqg_print_rwstat,
+ .seq_show = cfqg_print_rwstat,
},
{
.name = "io_wait_time",
.private = offsetof(struct cfq_group, stats.wait_time),
- .read_seq_string = cfqg_print_rwstat,
+ .seq_show = cfqg_print_rwstat,
},
{
.name = "io_merged",
.private = offsetof(struct cfq_group, stats.merged),
- .read_seq_string = cfqg_print_rwstat,
+ .seq_show = cfqg_print_rwstat,
},
{
.name = "io_queued",
.private = offsetof(struct cfq_group, stats.queued),
- .read_seq_string = cfqg_print_rwstat,
+ .seq_show = cfqg_print_rwstat,
},
/* the same statictics which cover the cfqg and its descendants */
{
.name = "time_recursive",
.private = offsetof(struct cfq_group, stats.time),
- .read_seq_string = cfqg_print_stat_recursive,
+ .seq_show = cfqg_print_stat_recursive,
},
{
.name = "sectors_recursive",
.private = offsetof(struct cfq_group, stats.sectors),
- .read_seq_string = cfqg_print_stat_recursive,
+ .seq_show = cfqg_print_stat_recursive,
},
{
.name = "io_service_bytes_recursive",
.private = offsetof(struct cfq_group, stats.service_bytes),
- .read_seq_string = cfqg_print_rwstat_recursive,
+ .seq_show = cfqg_print_rwstat_recursive,
},
{
.name = "io_serviced_recursive",
.private = offsetof(struct cfq_group, stats.serviced),
- .read_seq_string = cfqg_print_rwstat_recursive,
+ .seq_show = cfqg_print_rwstat_recursive,
},
{
.name = "io_service_time_recursive",
.private = offsetof(struct cfq_group, stats.service_time),
- .read_seq_string = cfqg_print_rwstat_recursive,
+ .seq_show = cfqg_print_rwstat_recursive,
},
{
.name = "io_wait_time_recursive",
.private = offsetof(struct cfq_group, stats.wait_time),
- .read_seq_string = cfqg_print_rwstat_recursive,
+ .seq_show = cfqg_print_rwstat_recursive,
},
{
.name = "io_merged_recursive",
.private = offsetof(struct cfq_group, stats.merged),
- .read_seq_string = cfqg_print_rwstat_recursive,
+ .seq_show = cfqg_print_rwstat_recursive,
},
{
.name = "io_queued_recursive",
.private = offsetof(struct cfq_group, stats.queued),
- .read_seq_string = cfqg_print_rwstat_recursive,
+ .seq_show = cfqg_print_rwstat_recursive,
},
#ifdef CONFIG_DEBUG_BLK_CGROUP
{
.name = "avg_queue_size",
- .read_seq_string = cfqg_print_avg_queue_size,
+ .seq_show = cfqg_print_avg_queue_size,
},
{
.name = "group_wait_time",
.private = offsetof(struct cfq_group, stats.group_wait_time),
- .read_seq_string = cfqg_print_stat,
+ .seq_show = cfqg_print_stat,
},
{
.name = "idle_time",
.private = offsetof(struct cfq_group, stats.idle_time),
- .read_seq_string = cfqg_print_stat,
+ .seq_show = cfqg_print_stat,
},
{
.name = "empty_time",
.private = offsetof(struct cfq_group, stats.empty_time),
- .read_seq_string = cfqg_print_stat,
+ .seq_show = cfqg_print_stat,
},
{
.name = "dequeue",
.private = offsetof(struct cfq_group, stats.dequeue),
- .read_seq_string = cfqg_print_stat,
+ .seq_show = cfqg_print_stat,
},
{
.name = "unaccounted_time",
.private = offsetof(struct cfq_group, stats.unaccounted_time),
- .read_seq_string = cfqg_print_stat,
+ .seq_show = cfqg_print_stat,
},
#endif /* CONFIG_DEBUG_BLK_CGROUP */
{ } /* terminate */
diff --git a/block/cmdline-parser.c b/block/cmdline-parser.c
index cc2637f8674e..9dbc67e42a99 100644
--- a/block/cmdline-parser.c
+++ b/block/cmdline-parser.c
@@ -4,8 +4,7 @@
* Written by Cai Zhiyong <caizhiyong@huawei.com>
*
*/
-#include <linux/buffer_head.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/cmdline-parser.h>
static int parse_subpart(struct cmdline_subpart **subpart, char *partdef)
@@ -159,6 +158,7 @@ void cmdline_parts_free(struct cmdline_parts **parts)
*parts = next_parts;
}
}
+EXPORT_SYMBOL(cmdline_parts_free);
int cmdline_parts_parse(struct cmdline_parts **parts, const char *cmdline)
{
@@ -206,6 +206,7 @@ fail:
cmdline_parts_free(parts);
goto done;
}
+EXPORT_SYMBOL(cmdline_parts_parse);
struct cmdline_parts *cmdline_parts_find(struct cmdline_parts *parts,
const char *bdev)
@@ -214,17 +215,17 @@ struct cmdline_parts *cmdline_parts_find(struct cmdline_parts *parts,
parts = parts->next_parts;
return parts;
}
+EXPORT_SYMBOL(cmdline_parts_find);
/*
* add_part()
* 0 success.
* 1 can not add so many partitions.
*/
-void cmdline_parts_set(struct cmdline_parts *parts, sector_t disk_size,
- int slot,
- int (*add_part)(int, struct cmdline_subpart *, void *),
- void *param)
-
+int cmdline_parts_set(struct cmdline_parts *parts, sector_t disk_size,
+ int slot,
+ int (*add_part)(int, struct cmdline_subpart *, void *),
+ void *param)
{
sector_t from = 0;
struct cmdline_subpart *subpart;
@@ -247,4 +248,7 @@ void cmdline_parts_set(struct cmdline_parts *parts, sector_t disk_size,
if (add_part(slot, subpart, param))
break;
}
+
+ return slot;
}
+EXPORT_SYMBOL(cmdline_parts_set);
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 625e3e471d65..26487972ac54 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -323,12 +323,14 @@ static int sg_io(struct request_queue *q, struct gendisk *bd_disk,
if (hdr->iovec_count) {
size_t iov_data_len;
- struct iovec *iov;
+ struct iovec *iov = NULL;
ret = rw_copy_check_uvector(-1, hdr->dxferp, hdr->iovec_count,
0, NULL, &iov);
- if (ret < 0)
+ if (ret < 0) {
+ kfree(iov);
goto out;
+ }
iov_data_len = ret;
ret = 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 07:23:38 +0000