diff options
Diffstat (limited to 'kernel/trace/ring_buffer.c')
-rw-r--r-- | kernel/trace/ring_buffer.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 2c839ca5e5ce..41ca394feb22 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c | |||
@@ -1210,18 +1210,19 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned nr_pages) | |||
1210 | 1210 | ||
1211 | for (i = 0; i < nr_pages; i++) { | 1211 | for (i = 0; i < nr_pages; i++) { |
1212 | if (RB_WARN_ON(cpu_buffer, list_empty(cpu_buffer->pages))) | 1212 | if (RB_WARN_ON(cpu_buffer, list_empty(cpu_buffer->pages))) |
1213 | return; | 1213 | goto out; |
1214 | p = cpu_buffer->pages->next; | 1214 | p = cpu_buffer->pages->next; |
1215 | bpage = list_entry(p, struct buffer_page, list); | 1215 | bpage = list_entry(p, struct buffer_page, list); |
1216 | list_del_init(&bpage->list); | 1216 | list_del_init(&bpage->list); |
1217 | free_buffer_page(bpage); | 1217 | free_buffer_page(bpage); |
1218 | } | 1218 | } |
1219 | if (RB_WARN_ON(cpu_buffer, list_empty(cpu_buffer->pages))) | 1219 | if (RB_WARN_ON(cpu_buffer, list_empty(cpu_buffer->pages))) |
1220 | return; | 1220 | goto out; |
1221 | 1221 | ||
1222 | rb_reset_cpu(cpu_buffer); | 1222 | rb_reset_cpu(cpu_buffer); |
1223 | rb_check_pages(cpu_buffer); | 1223 | rb_check_pages(cpu_buffer); |
1224 | 1224 | ||
1225 | out: | ||
1225 | spin_unlock_irq(&cpu_buffer->reader_lock); | 1226 | spin_unlock_irq(&cpu_buffer->reader_lock); |
1226 | } | 1227 | } |
1227 | 1228 | ||
@@ -1238,7 +1239,7 @@ rb_insert_pages(struct ring_buffer_per_cpu *cpu_buffer, | |||
1238 | 1239 | ||
1239 | for (i = 0; i < nr_pages; i++) { | 1240 | for (i = 0; i < nr_pages; i++) { |
1240 | if (RB_WARN_ON(cpu_buffer, list_empty(pages))) | 1241 | if (RB_WARN_ON(cpu_buffer, list_empty(pages))) |
1241 | return; | 1242 | goto out; |
1242 | p = pages->next; | 1243 | p = pages->next; |
1243 | bpage = list_entry(p, struct buffer_page, list); | 1244 | bpage = list_entry(p, struct buffer_page, list); |
1244 | list_del_init(&bpage->list); | 1245 | list_del_init(&bpage->list); |
@@ -1247,6 +1248,7 @@ rb_insert_pages(struct ring_buffer_per_cpu *cpu_buffer, | |||
1247 | rb_reset_cpu(cpu_buffer); | 1248 | rb_reset_cpu(cpu_buffer); |
1248 | rb_check_pages(cpu_buffer); | 1249 | rb_check_pages(cpu_buffer); |
1249 | 1250 | ||
1251 | out: | ||
1250 | spin_unlock_irq(&cpu_buffer->reader_lock); | 1252 | spin_unlock_irq(&cpu_buffer->reader_lock); |
1251 | } | 1253 | } |
1252 | 1254 | ||