bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 06:44:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

md/raid5: Un-nest struct raid5_percpu definition

Browse Source 
Sparse reports many warnings of the form:
  drivers/md/raid5.c:1476:16: warning: dereference of noderef expression

This is because all struct raid5_percpu definitions get marked as
__percpu when really only the pointer in r5conf should have that
annotation.

Fix this by moving the defnition of raid5_precpu out of the definition
of struct r5conf.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
This commit is contained in:
Logan Gunthorpe
2022-04-07 10:57:08 -06:00
committed by Song Liu
parent 8fbcba6b99
commit 3d9a644cf4
1 changed files with 11 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/md/raid5.h
View File

@@ -560,6 +560,16 @@ struct r5pending_data {
struct bio_list bios;
};
struct raid5_percpu {
struct page *spare_page; /* Used when checking P/Q in raid6 */
void *scribble; /* space for constructing buffer
* lists and performing address
* conversions
*/
int scribble_obj_size;
local_lock_t lock;
};
struct r5conf {
struct hlist_head *stripe_hashtbl;
/* only protect corresponding hash list and inactive_list */
@@ -635,15 +645,7 @@ struct r5conf {
*/
int recovery_disabled;
/* per cpu variables */
struct raid5_percpu {
struct page *spare_page; /* Used when checking P/Q in raid6 */
void *scribble; /* space for constructing buffer
* lists and performing address
* conversions
*/
int scribble_obj_size;
local_lock_t lock;
} __percpu *percpu;
struct raid5_percpu __percpu *percpu;
int scribble_disks;
int scribble_sectors;
struct hlist_node node;