From: Ira Weiny ira.weiny@intel.com
The kmap() calls in this FS are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call.
Cc: Anton Altaparmakov anton@tuxera.com Signed-off-by: Ira Weiny ira.weiny@intel.com --- fs/ntfs/aops.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c index bb0a43860ad2..11633d732809 100644 --- a/fs/ntfs/aops.c +++ b/fs/ntfs/aops.c @@ -1099,7 +1099,7 @@ static int ntfs_write_mst_block(struct page *page, if (!nr_bhs) goto done; /* Map the page so we can access its contents. */ - kaddr = kmap(page); + kaddr = kmap_thread(page); /* Clear the page uptodate flag whilst the mst fixups are applied. */ BUG_ON(!PageUptodate(page)); ClearPageUptodate(page); @@ -1276,7 +1276,7 @@ static int ntfs_write_mst_block(struct page *page, iput(VFS_I(base_tni)); } SetPageUptodate(page); - kunmap(page); + kunmap_thread(page); done: if (unlikely(err && err != -ENOMEM)) { /*