Commit 70b84808 authored by SeongJae Park's avatar SeongJae Park Committed by Linus Torvalds

mm/damon/dbgfs: remove an unnecessary variable

Patch series "mm/damon: Hide unnecessary information disclosures".

DAMON is exposing some unnecessary information including kernel pointer
in kernel log and tracepoint.  This patchset hides such information.
The first patch is only for a trivial cleanup, though.

This patch (of 4):

This commit removes a unnecessarily used variable in
dbgfs_target_ids_write().

Link: https://lkml.kernel.org/r/20211229131016.23641-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211229131016.23641-2-sj@kernel.org
Fixes: 4bc05954 ("mm/damon: implement a debugfs-based user space interface")
Signed-off-by: default avatarSeongJae Park <sj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2cd4b8e1
......@@ -364,7 +364,7 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
struct damon_ctx *ctx = file->private_data;
struct damon_target *t, *next_t;
bool id_is_pid = true;
char *kbuf, *nrs;
char *kbuf;
unsigned long *targets;
ssize_t nr_targets;
ssize_t ret;
......@@ -374,14 +374,13 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
if (IS_ERR(kbuf))
return PTR_ERR(kbuf);
nrs = kbuf;
if (!strncmp(kbuf, "paddr\n", count)) {
id_is_pid = false;
/* target id is meaningless here, but we set it just for fun */
scnprintf(kbuf, count, "42 ");
}
targets = str_to_target_ids(nrs, count, &nr_targets);
targets = str_to_target_ids(kbuf, count, &nr_targets);
if (!targets) {
ret = -ENOMEM;
goto out;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment