diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/md/dm-bio-prison.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/md/dm-bio-prison.c')
-rw-r--r-- | kernel/drivers/md/dm-bio-prison.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/kernel/drivers/md/dm-bio-prison.c b/kernel/drivers/md/dm-bio-prison.c index be065300e..03af17448 100644 --- a/kernel/drivers/md/dm-bio-prison.c +++ b/kernel/drivers/md/dm-bio-prison.c @@ -236,8 +236,10 @@ void dm_cell_error(struct dm_bio_prison *prison, bio_list_init(&bios); dm_cell_release(prison, cell, &bios); - while ((bio = bio_list_pop(&bios))) - bio_endio(bio, error); + while ((bio = bio_list_pop(&bios))) { + bio->bi_error = error; + bio_endio(bio); + } } EXPORT_SYMBOL_GPL(dm_cell_error); @@ -255,6 +257,32 @@ void dm_cell_visit_release(struct dm_bio_prison *prison, } EXPORT_SYMBOL_GPL(dm_cell_visit_release); +static int __promote_or_release(struct dm_bio_prison *prison, + struct dm_bio_prison_cell *cell) +{ + if (bio_list_empty(&cell->bios)) { + rb_erase(&cell->node, &prison->cells); + return 1; + } + + cell->holder = bio_list_pop(&cell->bios); + return 0; +} + +int dm_cell_promote_or_release(struct dm_bio_prison *prison, + struct dm_bio_prison_cell *cell) +{ + int r; + unsigned long flags; + + spin_lock_irqsave(&prison->lock, flags); + r = __promote_or_release(prison, cell); + spin_unlock_irqrestore(&prison->lock, flags); + + return r; +} +EXPORT_SYMBOL_GPL(dm_cell_promote_or_release); + /*----------------------------------------------------------------*/ #define DEFERRED_SET_SIZE 64 |