Commit 4a34e46e authored by Yuvraj Sakshith's avatar Yuvraj Sakshith Committed by Andrew Morton
Browse files

mm/page_reporting: change page_reporting_order to PAGE_REPORTING_ORDER_UNSPECIFIED 

page_reporting_order when uninitialised, holds a magic number -1.

Since we now maintain PAGE_REPORTING_ORDER_UNSPECIFIED as -1, which is
also a flag, set page_reporting_order to this flag.

Link: https://lkml.kernel.org/r/20260303113032.3008371-6-yuvraj.sakshith@oss.qualcomm.com


Signed-off-by: default avatarYuvraj Sakshith <yuvraj.sakshith@oss.qualcomm.com>
Acked-by: default avatarDavid Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: default avatarMichael Kelley <mhklinux@outlook.com>
Acked-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Eugenio Pérez <eperezma@redhat.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Long Li <longli@microsoft.com>
Cc: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 5467c292

mm/page_reporting.c

+2 −2
Original line number Diff line number Diff line
@@ -12,7 +12,7 @@ 
#include "internal.h"



/* Initialize to an unsupported value */

unsigned int page_reporting_order = -1;

unsigned int page_reporting_order = PAGE_REPORTING_ORDER_UNSPECIFIED;



static int page_order_update_notify(const char *val, const struct kernel_param *kp)

{
@@ -369,7 +369,7 @@ int page_reporting_register(struct page_reporting_dev_info *prdev) 
	 * pageblock_order.

	 */



	if (page_reporting_order == -1) {

	if (page_reporting_order == PAGE_REPORTING_ORDER_UNSPECIFIED) {

		if (prdev->order != PAGE_REPORTING_ORDER_UNSPECIFIED &&

		    prdev->order <= MAX_PAGE_ORDER)

			page_reporting_order = prdev->order;