[01/30] btrfs: get fs_info from eb in lock_extent_buffer_for_io

Commit Message

David Sterba March 25, 2019, 6:46 p.m. UTC

We can read fs_info from extent buffer and can drop it from the
parameters.

Signed-off-by: David Sterba <[e-mail]>
---
 fs/btrfs/extent_io.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

Patch

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 75062e2b1912..af720b2c2aeb 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3494,11 +3494,10 @@  void wait_on_extent_buffer_writeback(struct extent_buffer *eb)
  * Return >0 is same as 0, except bio is not submitted
  * Return <0 if something went wrong, no page is locked
  */
-static noinline_for_stack int
-lock_extent_buffer_for_io(struct extent_buffer *eb,
-			  struct btrfs_fs_info *fs_info,
+static noinline_for_stack int lock_extent_buffer_for_io(struct extent_buffer *eb,
 			  struct extent_page_data *epd)
 {
+	struct btrfs_fs_info *fs_info = eb->fs_info;
 	int i, num_pages, failed_page_nr;
 	int flush = 0;
 	int ret = 0;
@@ -3825,7 +3824,7 @@  int btree_write_cache_pages(struct address_space *mapping,
 				continue;
 
 			prev_eb = eb;
-			ret = lock_extent_buffer_for_io(eb, fs_info, &epd);
+			ret = lock_extent_buffer_for_io(eb, &epd);
 			if (!ret) {
 				free_extent_buffer(eb);
 				continue;