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| author | alc <alc@FreeBSD.org> | 2013-03-12 06:14:31 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2013-03-12 06:14:31 +0000 |
| commit | 07fc5999211dc399d7d9d071670a9a4c3fa8418a (patch) | |
| tree | 9d11b79284af8f795429929b1c6f5c8d09950136 /sys/vm/vm_page.c | |
| parent | 65dfab20537928bf598183f6e9646c0789efcead (diff) | |
| download | FreeBSD-src-07fc5999211dc399d7d9d071670a9a4c3fa8418a.zip FreeBSD-src-07fc5999211dc399d7d9d071670a9a4c3fa8418a.tar.gz | |
When transferring the page from one object to another, don't insert the
page into its new object until the page's pindex has been updated.
Otherwise, one code path within vm_radix_insert() may use the wrong
pindex value.
Sponsored by: EMC / Isilon Storage Division
Diffstat (limited to 'sys/vm/vm_page.c')
| -rw-r--r-- | sys/vm/vm_page.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index c47414a..16fe378 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -1110,10 +1110,10 @@ vm_page_cache_transfer(vm_object_t orig_object, vm_pindex_t offidxstart, if ((m->pindex - offidxstart) >= new_object->size) break; vm_radix_remove(&orig_object->cache, m->pindex); - vm_radix_insert(&new_object->cache, m->pindex - offidxstart, m); /* Update the page's object and offset. */ m->object = new_object; m->pindex -= offidxstart; + vm_radix_insert(&new_object->cache, m->pindex, m); } mtx_unlock(&vm_page_queue_free_mtx); } |
