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dm: use READ_ONCE in dm_blk_report_zones

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The functon dm_blk_report_zones reads md->zone_revalidate_map, however it
may change while the function is running. Use READ_ONCE.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: 37f53a2c60 ("dm: fix dm_blk_report_zones")
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
This commit is contained in:
Mikulas Patocka 2026-01-08 20:56:20 +01:00
parent 24c405fdbe
commit e9f5a55b70
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-zone.c
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@ -50,7 +50,7 @@ int dm_blk_report_zones(struct gendisk *disk, sector_t sector,
{
struct mapped_device *md = disk->private_data;
struct dm_table *map;
struct dm_table *zone_revalidate_map = md->zone_revalidate_map;
struct dm_table *zone_revalidate_map = READ_ONCE(md->zone_revalidate_map);
int srcu_idx, ret = -EIO;
bool put_table = false;