Author: benno
Date: Mon Mar 16 20:00:09 2015
New Revision: 280153
URL: https://svnweb.freebsd.org/changeset/base/280153
Log:
Reset bp->bio_done to unmapped_buf when removing a transient map in biodone.
Submitted by: Scott Ferris <scott.fer...@isilon.com>
Sponsored by: EMC / Isilon Storage Division
Reviewed by: kib
Modified:
head/sys/kern/vfs_bio.c
Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c Mon Mar 16 19:29:19 2015 (r280152)
+++ head/sys/kern/vfs_bio.c Mon Mar 16 20:00:09 2015 (r280153)
@@ -3611,6 +3611,7 @@ biodone(struct bio *bp)
bp->bio_flags |= BIO_UNMAPPED;
start = trunc_page((vm_offset_t)bp->bio_data);
end = round_page((vm_offset_t)bp->bio_data + bp->bio_length);
+ bp->bio_data = unmapped_buf;
pmap_qremove(start, OFF_TO_IDX(end - start));
vmem_free(transient_arena, start, end - start);
atomic_add_int(&inflight_transient_maps, -1);
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