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| author | kib <kib@FreeBSD.org> | 2010-05-03 20:31:13 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2010-05-03 20:31:13 +0000 |
| commit | 44c384aeff9f351d68878b89edebf255a4d96fe8 (patch) | |
| tree | 41e82776e29be9a0454c9f015858821f979ee83e /sys/dev/md/md.c | |
| parent | 6ca323ef63a448a489c16f9cbb57db639aa48201 (diff) | |
| download | FreeBSD-src-44c384aeff9f351d68878b89edebf255a4d96fe8.zip FreeBSD-src-44c384aeff9f351d68878b89edebf255a4d96fe8.tar.gz | |
Lock the page around vm_page_activate() and vm_page_deactivate() calls
where it was missed. The wrapped fragments now protect wire_count with
page lock.
Reviewed by: alc
Diffstat (limited to 'sys/dev/md/md.c')
| -rw-r--r-- | sys/dev/md/md.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/md/md.c b/sys/dev/md/md.c index 78f2af3..edd687f 100644 --- a/sys/dev/md/md.c +++ b/sys/dev/md/md.c @@ -665,11 +665,13 @@ mdstart_swap(struct md_s *sc, struct bio *bp) sf_buf_free(sf); sched_unpin(); vm_page_wakeup(m); + vm_page_lock(m); vm_page_lock_queues(); vm_page_activate(m); if (bp->bio_cmd == BIO_WRITE) vm_page_dirty(m); vm_page_unlock_queues(); + vm_page_unlock(m); /* Actions on further pages start at offset 0 */ p += PAGE_SIZE - offs; |
