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authorHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>2008-02-14 10:27:00 -0800
committerIngo Molnar <mingo@elte.hu>2008-02-25 16:34:17 +0100
commitd6643d12cb0885d06a1491b16c1476abcbd53d40 (patch)
treef342c01a278486e47a973cc84ffac72c43b57c64
parentae0027869db7d28563cd783865fab04ffd18419c (diff)
latencytop: fix memory leak on latency proc file
At lstats_open(), calling get_proc_task() gets task struct, but it never put. put_task_struct() should be called when releasing. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--fs/proc/base.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 989e3078d7af..85e06e498078 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -360,6 +360,15 @@ static int lstats_open(struct inode *inode, struct file *file)
return ret;
}
+static int lstats_release(struct inode *inode, struct file *file)
+{
+ struct seq_file *m = file->private_data;
+ struct task_struct *task = m->private;
+
+ put_task_struct(task);
+ return single_release(inode, file);
+}
+
static ssize_t lstats_write(struct file *file, const char __user *buf,
size_t count, loff_t *offs)
{
@@ -378,7 +387,7 @@ static const struct file_operations proc_lstats_operations = {
.read = seq_read,
.write = lstats_write,
.llseek = seq_lseek,
- .release = single_release,
+ .release = lstats_release,
};
#endif