btrfs: hooks for readahead

[karo-tx-linux.git] / fs / btrfs / extent_io.c

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index d418164a35f134842ed3af4cfd5f43666b37c89d..deba714236d7827f58a72e62e9d5399607fbabe3 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1731,7 +1731,7 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
                if (!uptodate && tree->ops &&
                    tree->ops->readpage_io_failed_hook) {
                        ret = tree->ops->readpage_io_failed_hook(bio, page,
-                                                        start, end, NULL);
+                                                        start, end, state);
                        if (ret == 0) {
                                uptodate =
                                        test_bit(BIO_UPTODATE, &bio->bi_flags);
@@ -3349,8 +3349,7 @@ int extent_buffer_uptodate(struct extent_io_tree *tree,
 }
 
 int read_extent_buffer_pages(struct extent_io_tree *tree,
-                            struct extent_buffer *eb,
-                            u64 start, int wait,
+                            struct extent_buffer *eb, u64 start, int wait,
                             get_extent_t *get_extent, int mirror_num)
 {
        unsigned long i;
@@ -3386,7 +3385,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
        num_pages = num_extent_pages(eb->start, eb->len);
        for (i = start_i; i < num_pages; i++) {
                page = extent_buffer_page(eb, i);
-               if (!wait) {
+               if (wait == WAIT_NONE) {
                        if (!trylock_page(page))
                                goto unlock_exit;
                } else {
@@ -3430,7 +3429,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
        if (bio)
                submit_one_bio(READ, bio, mirror_num, bio_flags);
 
-       if (ret || !wait)
+       if (ret || wait != WAIT_COMPLETE)
                return ret;
 
        for (i = start_i; i < num_pages; i++) {