powerpc/perf: Avoid spurious PMU interrupts after idle

[mirror_ubuntu-zesty-kernel.git] / fs / dax.c

diff --git a/fs/dax.c b/fs/dax.c
index 5e6d7982b4db300a4cfb0bcdfd49591fbff087d1..917c66584810c510b112036364644af24cbbcfeb 100644 (file)
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1000,7 +1000,7 @@ dax_iomap_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
         * into page tables. We have to tear down these mappings so that data
         * written by write(2) is visible in mmap.
         */
-       if ((iomap->flags & IOMAP_F_NEW) && inode->i_mapping->nrpages) {
+       if (iomap->flags & IOMAP_F_NEW) {
                invalidate_inode_pages2_range(inode->i_mapping,
                                              pos >> PAGE_SHIFT,
                                              (end - 1) >> PAGE_SHIFT);