diff options
| -rw-r--r-- | fs/ioprio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ioprio.c b/fs/ioprio.c index 8def14e24c37..2f7d05c89922 100644 --- a/fs/ioprio.c +++ b/fs/ioprio.c | |||
| @@ -111,12 +111,14 @@ SYSCALL_DEFINE3(ioprio_set, int, which, int, who, int, ioprio) | |||
| 111 | read_lock(&tasklist_lock); | 111 | read_lock(&tasklist_lock); |
| 112 | switch (which) { | 112 | switch (which) { |
| 113 | case IOPRIO_WHO_PROCESS: | 113 | case IOPRIO_WHO_PROCESS: |
| 114 | rcu_read_lock(); | ||
| 114 | if (!who) | 115 | if (!who) |
| 115 | p = current; | 116 | p = current; |
| 116 | else | 117 | else |
| 117 | p = find_task_by_vpid(who); | 118 | p = find_task_by_vpid(who); |
| 118 | if (p) | 119 | if (p) |
| 119 | ret = set_task_ioprio(p, ioprio); | 120 | ret = set_task_ioprio(p, ioprio); |
| 121 | rcu_read_unlock(); | ||
| 120 | break; | 122 | break; |
| 121 | case IOPRIO_WHO_PGRP: | 123 | case IOPRIO_WHO_PGRP: |
| 122 | if (!who) | 124 | if (!who) |
| @@ -205,12 +207,14 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who) | |||
| 205 | read_lock(&tasklist_lock); | 207 | read_lock(&tasklist_lock); |
| 206 | switch (which) { | 208 | switch (which) { |
| 207 | case IOPRIO_WHO_PROCESS: | 209 | case IOPRIO_WHO_PROCESS: |
| 210 | rcu_read_lock(); | ||
| 208 | if (!who) | 211 | if (!who) |
| 209 | p = current; | 212 | p = current; |
| 210 | else | 213 | else |
| 211 | p = find_task_by_vpid(who); | 214 | p = find_task_by_vpid(who); |
| 212 | if (p) | 215 | if (p) |
| 213 | ret = get_task_ioprio(p); | 216 | ret = get_task_ioprio(p); |
| 217 | rcu_read_unlock(); | ||
| 214 | break; | 218 | break; |
| 215 | case IOPRIO_WHO_PGRP: | 219 | case IOPRIO_WHO_PGRP: |
| 216 | if (!who) | 220 | if (!who) |