[PATCH RFC PKS/PMEM 38/58] fs/isofs: Utilize new kmap_thread()

[ira.weiny@xxxxxxxxx]

From: Ira Weiny <ira.weiny@xxxxxxxxx>

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@xxxxxxxxx>
---
 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]);
-- 
2.28.0.rc0.12.gb6a658bd00c9