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| author | alc <alc@FreeBSD.org> | 2017-03-18 05:53:09 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2017-03-18 05:53:09 +0000 |
| commit | 107d82389fc2401de0b8ac764a9fe87fcb170b41 (patch) | |
| tree | c42439fb8e6b255d13aed7b4aa0c53b1905ece6c /sys/vm | |
| parent | eb7cfa9fc047cf119c2e80a41753313e2ee4a7a4 (diff) | |
| download | FreeBSD-src-107d82389fc2401de0b8ac764a9fe87fcb170b41.zip FreeBSD-src-107d82389fc2401de0b8ac764a9fe87fcb170b41.tar.gz | |
MFC r315318
Relax the locking requirements for vm_object_page_noreuse(). While
reviewing all uses of OFF_TO_IDX(), I observed that
vm_object_page_noreuse() is requiring an exclusive lock on the object
when, in fact, a shared lock suffices.
Diffstat (limited to 'sys/vm')
| -rw-r--r-- | sys/vm/vm_object.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index 6536b9e..ee1907b 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -1977,7 +1977,7 @@ vm_object_page_noreuse(vm_object_t object, vm_pindex_t start, vm_pindex_t end) struct mtx *mtx, *new_mtx; vm_page_t p, next; - VM_OBJECT_ASSERT_WLOCKED(object); + VM_OBJECT_ASSERT_LOCKED(object); KASSERT((object->flags & (OBJ_FICTITIOUS | OBJ_UNMANAGED)) == 0, ("vm_object_page_noreuse: illegal object %p", object)); if (object->resident_page_count == 0) |
