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UBI: Ensure that "background thread" operations are really executed 

The current U-Boot UBI implementation is copied from Linux. In this
porting the UBI background thread was not handled correctly. Upon write
operations ubi_wl_flush() makes sure, that all queued operations, like
page-erase, are completed. But this is missing for read operations.

This patch now makes sure that such operations (like scrubbing upon
bit-flip errors) are not queued, but executed directly.

Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese 2010-05-17 10:00:51 +02:00
parent a2a0a71713
commit 1b1f9a9d00
1 changed files with 7 additions and 2 deletions
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9
drivers/mtd/ubi/wl.c
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@ -696,8 +696,13 @@ static void schedule_ubi_work(struct ubi_device *ubi, struct ubi_work *wrk)
list_add_tail(&wrk->list, &ubi->works);
ubi_assert(ubi->works_count >= 0);
ubi->works_count += 1;
if (ubi->thread_enabled)
wake_up_process(ubi->bgt_thread);
/*
* U-Boot special: We have no bgt_thread in U-Boot!
* So just call do_work() here directly.
*/
do_work(ubi);
spin_unlock(&ubi->wl_lock);
}