Messages in this thread Patch in this message | | | From | Nigel Cunningham <> | Subject | [Suspend2][ 13/32] [Suspend2] Suspend bio completion. | Date | Tue, 27 Jun 2006 08:37:52 +1000 |
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Routine called in an interrupt context when block io completes. We move the io_info struct from the busy list to the ready-for-cleanup list.
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
kernel/power/suspend_block_io.c | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/kernel/power/suspend_block_io.c b/kernel/power/suspend_block_io.c index a1fcacb..288718c 100644 --- a/kernel/power/suspend_block_io.c +++ b/kernel/power/suspend_block_io.c @@ -436,3 +436,30 @@ static void suspend_cleanup_readahead(in return; } +/* + * suspend_end_bio + * + * Description: Function called by block driver from interrupt context when I/O + * is completed. This is the reason we use spinlocks in + * manipulating the io_info lists. + * Nearly the fs/buffer.c version, but we want to mark the page as + * done in our own structures too. + */ + +static int suspend_end_bio(struct bio *bio, unsigned int num, int err) +{ + struct io_info *io_info = bio->bi_private; + unsigned long flags; + + spin_lock_irqsave(&ioinfo_busy_lock, flags); + list_del_init(&io_info->list); + spin_unlock_irqrestore(&ioinfo_busy_lock, flags); + + set_bit(IO_AWAITING_CLEANUP, &io_info->flags); + + spin_lock_irqsave(&ioinfo_ready_lock, flags); + list_add_tail(&io_info->list, &ioinfo_ready_for_cleanup); + spin_unlock_irqrestore(&ioinfo_ready_lock, flags); + return 0; +} + -- 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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