From eac58d08d4937d2eab8f71c663d98d0759845bde Mon Sep 17 00:00:00 2001 From: Logan Gunthorpe Date: Wed, 8 Jun 2022 10:27:54 -0600 Subject: md: Use enum for overloaded magic numbers used by mddev->curr_resync Comments in the code document special values used for mddev->curr_resync. Make this clearer by using an enum to label these values. The only functional change is a couple places use the wrong comparison operator that implied 3 is another special value. They are all fixed to imply that 3 or greater is an active resync. Signed-off-by: Logan Gunthorpe Reviewed-by: Christoph Hellwig Signed-off-by: Song Liu Signed-off-by: Jens Axboe --- drivers/md/md.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/md/md.h') diff --git a/drivers/md/md.h b/drivers/md/md.h index b4f84b27bdef..551c0a349cb5 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -288,6 +288,21 @@ struct serial_info { sector_t _subtree_last; /* highest sector in subtree of rb node */ }; +/* + * mddev->curr_resync stores the current sector of the resync but + * also has some overloaded values. + */ +enum { + /* No resync in progress */ + MD_RESYNC_NONE = 0, + /* Yielded to allow another conflicting resync to commence */ + MD_RESYNC_YIELDED = 1, + /* Delayed to check that there is no conflict with another sync */ + MD_RESYNC_DELAYED = 2, + /* Any value greater than or equal to this is in an active resync */ + MD_RESYNC_ACTIVE = 3, +}; + struct mddev { void *private; struct md_personality *pers; -- cgit 1.4.1