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authorMike Rapoport <rppt@linux.vnet.ibm.com>2018-02-06 15:40:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-06 18:32:46 -0800
commit2ee0826085d1c0281cb60c1f4bc3e0c27efeedc3 (patch)
treebb2dc8915be7e4f0fea7438edf380d84b896f80a /mm
parenteab216e9cc636c24cec06bdf57a80f4c26b34493 (diff)
pids: introduce find_get_task_by_vpid() helper
There are several functions that do find_task_by_vpid() followed by get_task_struct(). We can use a helper function instead. Link: http://lkml.kernel.org/r/1509602027-11337-1-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/process_vm_access.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 8973cd231ece..16424b9ae424 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -197,11 +197,7 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
}
/* Get process information */
- rcu_read_lock();
- task = find_task_by_vpid(pid);
- if (task)
- get_task_struct(task);
- rcu_read_unlock();
+ task = find_get_task_by_vpid(pid);
if (!task) {
rc = -ESRCH;
goto free_proc_pages;