IB/ipath: Minor fix to ordering of freeing and zeroing of tid pages.
Fixed to be the same as everywhere else. copy and then zero the page *
in the array first, and then pass the copy to the VM routines.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 016e7c4..5de3243 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -538,6 +538,9 @@
continue;
cnt++;
if (dd->ipath_pageshadow[porttid + tid]) {
+ struct page *p;
+ p = dd->ipath_pageshadow[porttid + tid];
+ dd->ipath_pageshadow[porttid + tid] = NULL;
ipath_cdbg(VERBOSE, "PID %u freeing TID %u\n",
pd->port_pid, tid);
dd->ipath_f_put_tid(dd, &tidbase[tid],
@@ -546,9 +549,7 @@
pci_unmap_page(dd->pcidev,
dd->ipath_physshadow[porttid + tid],
PAGE_SIZE, PCI_DMA_FROMDEVICE);
- ipath_release_user_pages(
- &dd->ipath_pageshadow[porttid + tid], 1);
- dd->ipath_pageshadow[porttid + tid] = NULL;
+ ipath_release_user_pages(&p, 1);
ipath_stats.sps_pageunlocks++;
} else
ipath_dbg("Unused tid %u, ignoring\n", tid);