Messages in this thread Patch in this message | | | From | Nigel Cunningham <> | Subject | [Suspend2][ 06/32] [Suspend2] Cleanup some completed I/O | Date | Tue, 27 Jun 2006 08:37:27 +1000 |
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Iterate through the read_for_cleanup list, cleaning up a maximum of submit_batch_size completed pages.
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
kernel/power/suspend_block_io.c | 37 ++++++++++++++++++++++++++++++++++++- 1 files changed, 36 insertions(+), 1 deletions(-)
diff --git a/kernel/power/suspend_block_io.c b/kernel/power/suspend_block_io.c index 037535b..cfff687 100644 --- a/kernel/power/suspend_block_io.c +++ b/kernel/power/suspend_block_io.c @@ -229,7 +229,7 @@ static void __suspend_bio_cleanup_one(st io_info->flags = 0; } -/* suspend_bio_cleanup_one +/* __suspend_io_cleanup */ static int suspend_bio_cleanup_one(void *data) @@ -275,3 +275,38 @@ static int suspend_bio_cleanup_one(void return 0; } +/* suspend_cleanup_some_completed_io + * + * NB: This is designed so that multiple callers can be in here simultaneously. + */ + +static void suspend_cleanup_some_completed_io(void) +{ + int num_cleaned = 0; + struct io_info *first; + unsigned long flags; + + spin_lock_irqsave(&ioinfo_ready_lock, flags); + while(!list_empty(&ioinfo_ready_for_cleanup)) { + int result; + first = list_entry(ioinfo_ready_for_cleanup.next, + struct io_info, list); + + BUG_ON(!test_and_clear_bit(IO_AWAITING_CLEANUP, &first->flags)); + + list_del_init(&first->list); + + spin_unlock_irqrestore(&ioinfo_ready_lock, flags); + + result = suspend_bio_cleanup_one((void *) first); + + spin_lock_irqsave(&ioinfo_ready_lock, flags); + if (result) + continue; + num_cleaned++; + if (num_cleaned == submit_batch_size) + break; + } + spin_unlock_irqrestore(&ioinfo_ready_lock, flags); +} + -- Nigel Cunningham nigel at suspend2 dot net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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