Bluetooth: Increase write data limit in l2cap connection.

[platform/kernel/linux-rpi.git] / fs / dax.c

diff --git a/fs/dax.c b/fs/dax.c
index 4e3e5a2..4ab1c49 100644 (file)
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -846,7 +846,8 @@ static void dax_entry_mkclean(struct address_space *mapping, pgoff_t index,
                        if (!pmd_dirty(*pmdp) && !pmd_write(*pmdp))
                                goto unlock_pmd;
 
-                       flush_cache_page(vma, address, pfn);
+                       flush_cache_range(vma, address,
+                                         address + HPAGE_PMD_SIZE);
                        pmd = pmdp_invalidate(vma, address, pmdp);
                        pmd = pmd_wrprotect(pmd);
                        pmd = pmd_mkclean(pmd);
@@ -1278,6 +1279,9 @@ dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter,
        loff_t done = 0;
        int ret;
 
+       if (!iomi.len)
+               return 0;
+
        if (iov_iter_rw(iter) == WRITE) {
                lockdep_assert_held_write(&iomi.inode->i_rwsem);
                iomi.flags |= IOMAP_WRITE;