diff options
Diffstat (limited to 'drivers/mtd/ubi/fastmap-wl.c')
| -rw-r--r-- | drivers/mtd/ubi/fastmap-wl.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/fastmap-wl.c b/drivers/mtd/ubi/fastmap-wl.c index 675e487ae8..4cb1377c42 100644 --- a/drivers/mtd/ubi/fastmap-wl.c +++ b/drivers/mtd/ubi/fastmap-wl.c @@ -170,6 +170,30 @@ void ubi_refill_pools(struct ubi_device *ubi) } /** + * produce_free_peb - produce a free physical eraseblock. + * @ubi: UBI device description object + * + * This function tries to make a free PEB by means of synchronous execution of + * pending works. This may be needed if, for example the background thread is + * disabled. Returns zero in case of success and a negative error code in case + * of failure. + */ +static int produce_free_peb(struct ubi_device *ubi) +{ + int err; + + while (!ubi->free.rb_node && ubi->works_count) { + dbg_wl("do one work synchronously"); + err = do_work(ubi); + + if (err) + return err; + } + + return 0; +} + +/** * ubi_wl_get_peb - get a physical eraseblock. * @ubi: UBI device description object * @@ -211,6 +235,11 @@ again: } retried = 1; up_read(&ubi->fm_eba_sem); + ret = produce_free_peb(ubi); + if (ret < 0) { + down_read(&ubi->fm_eba_sem); + goto out; + } goto again; } |