The quilt patch titled
Subject: mm/damon/sysfs: prohibit multiple physical address space monitoring targets
has been removed from the -mm tree. Its filename was
mm-damon-sysfs-prohibit-multiple-physical-address-space-monitoring-targets.patch
This patch was dropped because it was merged into mm-stable
------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/sysfs: prohibit multiple physical address space monitoring targets
Having multiple targets for physical address space monitoring makes no
sense. This commit prohibits such a ridiculous DAMON context setup my
making the DAMON context build function to check and return an error for
the case.
Link: https://lkml.kernel.org/r/20220429160606.127307-7-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/sysfs.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/mm/damon/sysfs.c~mm-damon-sysfs-prohibit-multiple-physical-address-space-monitoring-targets
+++ a/mm/damon/sysfs.c
@@ -2125,6 +2125,10 @@ static int damon_sysfs_set_targets(struc
{
int i, err;
+ /* Multiple physical address space monitoring targets makes no sense */
+ if (ctx->ops.id == DAMON_OPS_PADDR && sysfs_targets->nr > 1)
+ return -EINVAL;
+
for (i = 0; i < sysfs_targets->nr; i++) {
struct damon_sysfs_target *sys_target =
sysfs_targets->targets_arr[i];
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
