From: Ira Weiny ira.weiny@intel.com
These kmap() calls are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call.
Signed-off-by: Ira Weiny ira.weiny@intel.com --- fs/isofs/compress.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c index bc12ac7e2312..ddd3fd99d2e1 100644 --- a/fs/isofs/compress.c +++ b/fs/isofs/compress.c @@ -344,7 +344,7 @@ static int zisofs_readpage(struct file *file, struct page *page) pages[i] = grab_cache_page_nowait(mapping, index); if (pages[i]) { ClearPageError(pages[i]); - kmap(pages[i]); + kmap_thread(pages[i]); } }
@@ -356,7 +356,7 @@ static int zisofs_readpage(struct file *file, struct page *page) flush_dcache_page(pages[i]); if (i == full_page && err) SetPageError(pages[i]); - kunmap(pages[i]); + kunmap_thread(pages[i]); unlock_page(pages[i]); if (i != full_page) put_page(pages[i]);