From 3ac8c70f74ca67111c570f4ba828cc4b6fc229f4 Mon Sep 17 00:00:00 2001 From: Dave Olson Date: Wed, 3 Oct 2007 12:47:00 -0700 Subject: [PATCH] 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 Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_file_ops.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 016e7c4e36..5de3243a47 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -538,6 +538,9 @@ static int ipath_tid_free(struct ipath_portdata *pd, unsigned subport, 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 @@ static int ipath_tid_free(struct ipath_portdata *pd, unsigned subport, 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); -- 2.39.5