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| author | alc <alc@FreeBSD.org> | 2007-09-15 18:30:28 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2007-09-15 18:30:28 +0000 |
| commit | 0188378655831f69b6dfe72c699ed262ae4d42f3 (patch) | |
| tree | cad72c063a8bcbc0a9c598a2860cc520aec57389 /sys/vm/vm_pageout.c | |
| parent | af406864eea90a3bfd45e627c9e3e663a5b1b176 (diff) | |
| download | FreeBSD-src-0188378655831f69b6dfe72c699ed262ae4d42f3.zip FreeBSD-src-0188378655831f69b6dfe72c699ed262ae4d42f3.tar.gz | |
Correct an assertion in vm_pageout_flush(). Specifically, if a page's
status after vm_pager_put_pages() is VM_PAGER_PEND, then it could have
already been recycled, i.e., freed and reallocated to a new purpose;
thus, asserting that such pages cannot be written is inappropriate.
Reported by: kris
Submitted by: tegge
Approved by: re (kensmith)
MFC after: 1 week
Diffstat (limited to 'sys/vm/vm_pageout.c')
| -rw-r--r-- | sys/vm/vm_pageout.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/vm/vm_pageout.c b/sys/vm/vm_pageout.c index c46bfe3..7bea8da 100644 --- a/sys/vm/vm_pageout.c +++ b/sys/vm/vm_pageout.c @@ -447,7 +447,8 @@ vm_pageout_flush(vm_page_t *mc, int count, int flags) for (i = 0; i < count; i++) { vm_page_t mt = mc[i]; - KASSERT((mt->flags & PG_WRITEABLE) == 0, + KASSERT(pageout_status[i] == VM_PAGER_PEND || + (mt->flags & PG_WRITEABLE) == 0, ("vm_pageout_flush: page %p is not write protected", mt)); switch (pageout_status[i]) { case VM_PAGER_OK: |
