diff options
Diffstat (limited to 'drivers/md/dm-kcopyd.c')
| -rw-r--r-- | drivers/md/dm-kcopyd.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c index 25d2f1279466..aecf9673b51a 100644 --- a/drivers/md/dm-kcopyd.c +++ b/drivers/md/dm-kcopyd.c @@ -51,10 +51,12 @@ static unsigned int dm_get_kcopyd_subjob_size(void) return sub_job_size_kb << 1; } -/*----------------------------------------------------------------- +/* + *---------------------------------------------------------------- * Each kcopyd client has its own little pool of preallocated * pages for kcopyd io. - *---------------------------------------------------------------*/ + *--------------------------------------------------------------- + */ struct dm_kcopyd_client { struct page_list *pages; unsigned int nr_reserved_pages; @@ -334,11 +336,13 @@ static void client_free_pages(struct dm_kcopyd_client *kc) kc->nr_free_pages = kc->nr_reserved_pages = 0; } -/*----------------------------------------------------------------- +/* + *--------------------------------------------------------------- * kcopyd_jobs need to be allocated by the *clients* of kcopyd, * for this reason we use a mempool to prevent the client from * ever having to do io (which could cause a deadlock). - *---------------------------------------------------------------*/ + *--------------------------------------------------------------- + */ struct kcopyd_job { struct dm_kcopyd_client *kc; struct list_head list; @@ -901,9 +905,11 @@ int kcopyd_cancel(struct kcopyd_job *job, int block) } #endif /* 0 */ -/*----------------------------------------------------------------- +/* + *--------------------------------------------------------------- * Client setup - *---------------------------------------------------------------*/ + *--------------------------------------------------------------- + */ struct dm_kcopyd_client *dm_kcopyd_client_create(struct dm_kcopyd_throttle *throttle) { int r; |