Btrfs: Create larger bios for btree blocks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index b68e57f..fcae999 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2859,8 +2859,8 @@
int read_extent_buffer_pages(struct extent_io_tree *tree,
struct extent_buffer *eb,
- u64 start,
- int wait)
+ u64 start, int wait,
+ get_extent_t *get_extent)
{
unsigned long i;
unsigned long start_i;
@@ -2868,6 +2868,8 @@
int err;
int ret = 0;
unsigned long num_pages;
+ struct bio *bio = NULL;
+
if (eb->flags & EXTENT_UPTODATE)
return 0;
@@ -2899,7 +2901,8 @@
lock_page(page);
}
if (!PageUptodate(page)) {
- err = page->mapping->a_ops->readpage(NULL, page);
+ err = __extent_read_full_page(tree, page,
+ get_extent, &bio);
if (err) {
ret = err;
}
@@ -2908,6 +2911,9 @@
}
}
+ if (bio)
+ submit_one_bio(READ, bio);
+
if (ret || !wait) {
return ret;
}