diff mbox series

mm/damon/sysfs: fix pid leak under fvaddr ops use case

Message ID 20220503220531.45913-1-sj@kernel.org (mailing list archive)
State New
Headers show
Series mm/damon/sysfs: fix pid leak under fvaddr ops use case | expand

Commit Message

SeongJae Park May 3, 2022, 10:05 p.m. UTC 
Commit c83136469313 ("mm/damon/sysfs: support fixed virtual address
ranges monitoring") in 'mm-unstable' does not put the monitoring target
pid when fvaddr ops is used.  This commit fixes it to put pid properly.

Andrew, please merge this into the 'mm-unstable' commit
("mm/damon/sysfs: support fixed virtual address ranges monitoring").

Fixes: c83136469313 ("mm/damon/sysfs: support fixed virtual address ranges monitoring")
Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/sysfs.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index 767ab8c33e4d..f753bb405101 100644
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -2086,7 +2086,8 @@  static void damon_sysfs_destroy_targets(struct damon_ctx *ctx)
 	struct damon_target *t, *next;
 
 	damon_for_each_target_safe(t, next, ctx) {
-		if (ctx->ops.id == DAMON_OPS_VADDR)
+		if (ctx->ops.id == DAMON_OPS_VADDR ||
+				ctx->ops.id == DAMON_OPS_FVADDR)
 			put_pid(t->pid);
 		damon_destroy_target(t);
 	}
@@ -2204,7 +2205,7 @@  static void damon_sysfs_before_terminate(struct damon_ctx *ctx)
 {
 	struct damon_target *t, *next;
 
-	if (ctx->ops.id != DAMON_OPS_VADDR)
+	if (ctx->ops.id != DAMON_OPS_VADDR && ctx->ops.id != DAMON_OPS_FVADDR)
 		return;
 
 	mutex_lock(&ctx->kdamond_lock);