[PATCH 03/30] btrfs: get fs_info from eb in write_one_eb

[David Sterba]

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

Signed-off-by: David Sterba <dste...@suse.com>
---
 fs/btrfs/extent_io.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index a74278187fcd..ae3746829e41 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3677,10 +3677,10 @@ static void end_bio_extent_buffer_writepage(struct bio 
*bio)
 }
 
 static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
-                       struct btrfs_fs_info *fs_info,
                        struct writeback_control *wbc,
                        struct extent_page_data *epd)
 {
+       struct btrfs_fs_info *fs_info = eb->fs_info;
        struct block_device *bdev = fs_info->fs_devices->latest_bdev;
        struct extent_io_tree *tree = &BTRFS_I(fs_info->btree_inode)->io_tree;
        u64 offset = eb->start;
@@ -3749,7 +3749,6 @@ int btree_write_cache_pages(struct address_space *mapping,
                                   struct writeback_control *wbc)
 {
        struct extent_io_tree *tree = &BTRFS_I(mapping->host)->io_tree;
-       struct btrfs_fs_info *fs_info = BTRFS_I(mapping->host)->root->fs_info;
        struct extent_buffer *eb, *prev_eb = NULL;
        struct extent_page_data epd = {
                .bio = NULL,
@@ -3830,7 +3829,7 @@ int btree_write_cache_pages(struct address_space *mapping,
                                continue;
                        }
 
-                       ret = write_one_eb(eb, fs_info, wbc, &epd);
+                       ret = write_one_eb(eb, wbc, &epd);
                        if (ret) {
                                done = 1;
                                free_extent_buffer(eb);
-- 
2.21.0