1 files changed, 12 insertions, 2 deletions

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index a2c21570adf5..979fa0d6bfee 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -45,6 +45,7 @@ struct extent_page_data {
         struct bio *bio;
         struct extent_io_tree *tree;
         get_extent_t *get_extent;
+        unsigned long bio_flags;
 
         /* tells writepage not to lock the state bits for this range
          * it still does the unlocking
@@ -3163,12 +3164,16 @@ static int write_one_eb(struct extent_buffer *eb,
         struct block_device *bdev = fs_info->fs_devices->latest_bdev;
         u64 offset = eb->start;
         unsigned long i, num_pages;
+        unsigned long bio_flags = 0;
         int rw = (epd->sync_io ? WRITE_SYNC : WRITE);
         int ret = 0;
 
         clear_bit(EXTENT_BUFFER_IOERR, &eb->bflags);
         num_pages = num_extent_pages(eb->start, eb->len);
         atomic_set(&eb->io_pages, num_pages);
+        if (btrfs_header_owner(eb) == BTRFS_TREE_LOG_OBJECTID)
+                bio_flags = EXTENT_BIO_TREE_LOG;
+
         for (i = 0; i < num_pages; i++) {
                 struct page *p = extent_buffer_page(eb, i);
 
@@ -3177,7 +3182,8 @@ static int write_one_eb(struct extent_buffer *eb,
                 ret = submit_extent_page(rw, eb->tree, p, offset >> 9,
                                          PAGE_CACHE_SIZE, 0, bdev, &epd->bio,
                                          -1, end_bio_extent_buffer_writepage,
-                                         0, 0, 0);
+                                         0, epd->bio_flags, bio_flags);
+                epd->bio_flags = bio_flags;
                 if (ret) {
                         set_bit(EXTENT_BUFFER_IOERR, &eb->bflags);
                         SetPageError(p);
@@ -3212,6 +3218,7 @@ int btree_write_cache_pages(struct address_space *mapping,
                 .tree = tree,
                 .extent_locked = 0,
                 .sync_io = wbc->sync_mode == WB_SYNC_ALL,
+                .bio_flags = 0,
         };
         int ret = 0;
         int done = 0;
@@ -3474,7 +3481,7 @@ static void flush_epd_write_bio(struct extent_page_data *epd)
                 if (epd->sync_io)
                         rw = WRITE_SYNC;
 
-                ret = submit_one_bio(rw, epd->bio, 0, 0);
+                ret = submit_one_bio(rw, epd->bio, 0, epd->bio_flags);
                 BUG_ON(ret < 0); /* -ENOMEM */
                 epd->bio = NULL;
         }
@@ -3497,6 +3504,7 @@ int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
                 .get_extent = get_extent,
                 .extent_locked = 0,
                 .sync_io = wbc->sync_mode == WB_SYNC_ALL,
+                .bio_flags = 0,
         };
 
         ret = __extent_writepage(page, wbc, &epd);
@@ -3521,6 +3529,7 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
                 .get_extent = get_extent,
                 .extent_locked = 1,
                 .sync_io = mode == WB_SYNC_ALL,
+                .bio_flags = 0,
         };
         struct writeback_control wbc_writepages = {
                 .sync_mode      = mode,
@@ -3560,6 +3569,7 @@ int extent_writepages(struct extent_io_tree *tree,
                 .get_extent = get_extent,
                 .extent_locked = 0,
                 .sync_io = wbc->sync_mode == WB_SYNC_ALL,
+                .bio_flags = 0,
         };
 
         ret = extent_write_cache_pages(tree, mapping, wbc,