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| author | Poul-Henning Kamp <phk@FreeBSD.org> | 2002-10-09 07:11:59 +0000 |
|---|---|---|
| committer | Poul-Henning Kamp <phk@FreeBSD.org> | 2002-10-09 07:11:59 +0000 |
| commit | 3f521b6022ea6f9efdb4b388551e4216436cc30a (patch) | |
| tree | a44664bc7d5852c7393f6ea401ff5c37d19c26dc /sys/geom/geom_subr.c | |
| parent | 61e1c1f39ee6e1e15e19789d7b8d6bee1b89ec58 (diff) | |
| download | src-3f521b6022ea6f9efdb4b388551e4216436cc30a.tar.gz src-3f521b6022ea6f9efdb4b388551e4216436cc30a.zip | |
Add support g_clone_bio() and g_std_done() to spawn multiple children
of a bio and correctly gather status when done.
Sponsored by: DARPA & NAI Labs.
Notes
Notes:
svn path=/head/; revision=104701
Diffstat (limited to 'sys/geom/geom_subr.c')
| -rw-r--r-- | sys/geom/geom_subr.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/geom/geom_subr.c b/sys/geom/geom_subr.c index bfb07323a545..45130c6f8d94 100644 --- a/sys/geom/geom_subr.c +++ b/sys/geom/geom_subr.c @@ -495,13 +495,15 @@ void g_std_done(struct bio *bp) { struct bio *bp2; - int error; bp2 = bp->bio_linkage; - error = bp->bio_error; - bp2->bio_completed = bp->bio_completed; + if (bp2->bio_error == 0) + bp2->bio_error = bp->bio_error; + bp2->bio_completed += bp->bio_completed; g_destroy_bio(bp); - g_io_deliver(bp2, error); + bp2->bio_children--; /* XXX: atomic ? */ + if (bp2->bio_children == 0) + g_io_deliver(bp2, bp2->bio_error); } /* XXX: maybe this is only g_slice_spoiled */ |