Merge branch 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...

[linux-drm-fsl-dcu.git] / fs / btrfs / extent_io.c

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index e2357e31609a2e8469b38c7e95b66f6dd68fcd93..3915c9473e9445d4aeada81c8fb96af7fb521f2c 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3132,12 +3132,12 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
                                             get_extent_t *get_extent,
                                             struct extent_map **em_cached,
                                             struct bio **bio, int mirror_num,
-                                            unsigned long *bio_flags, int rw)
+                                            unsigned long *bio_flags, int rw,
+                                            u64 *prev_em_start)
 {
        struct inode *inode;
        struct btrfs_ordered_extent *ordered;
        int index;
-       u64 prev_em_start = (u64)-1;
 
        inode = pages[0]->mapping->host;
        while (1) {
@@ -3153,7 +3153,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
 
        for (index = 0; index < nr_pages; index++) {
                __do_readpage(tree, pages[index], get_extent, em_cached, bio,
-                             mirror_num, bio_flags, rw, &prev_em_start);
+                             mirror_num, bio_flags, rw, prev_em_start);
                page_cache_release(pages[index]);
        }
 }
@@ -3163,7 +3163,8 @@ static void __extent_readpages(struct extent_io_tree *tree,
                               int nr_pages, get_extent_t *get_extent,
                               struct extent_map **em_cached,
                               struct bio **bio, int mirror_num,
-                              unsigned long *bio_flags, int rw)
+                              unsigned long *bio_flags, int rw,
+                              u64 *prev_em_start)
 {
        u64 start = 0;
        u64 end = 0;
@@ -3184,7 +3185,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
                                                  index - first_index, start,
                                                  end, get_extent, em_cached,
                                                  bio, mirror_num, bio_flags,
-                                                 rw);
+                                                 rw, prev_em_start);
                        start = page_start;
                        end = start + PAGE_CACHE_SIZE - 1;
                        first_index = index;
@@ -3195,7 +3196,8 @@ static void __extent_readpages(struct extent_io_tree *tree,
                __do_contiguous_readpages(tree, &pages[first_index],
                                          index - first_index, start,
                                          end, get_extent, em_cached, bio,
-                                         mirror_num, bio_flags, rw);
+                                         mirror_num, bio_flags, rw,
+                                         prev_em_start);
 }
 
 static int __extent_read_full_page(struct extent_io_tree *tree,
@@ -4207,6 +4209,7 @@ int extent_readpages(struct extent_io_tree *tree,
        struct page *page;
        struct extent_map *em_cached = NULL;
        int nr = 0;
+       u64 prev_em_start = (u64)-1;
 
        for (page_idx = 0; page_idx < nr_pages; page_idx++) {
                page = list_entry(pages->prev, struct page, lru);
@@ -4223,12 +4226,12 @@ int extent_readpages(struct extent_io_tree *tree,
                if (nr < ARRAY_SIZE(pagepool))
                        continue;
                __extent_readpages(tree, pagepool, nr, get_extent, &em_cached,
-                                  &bio, 0, &bio_flags, READ);
+                                  &bio, 0, &bio_flags, READ, &prev_em_start);
                nr = 0;
        }
        if (nr)
                __extent_readpages(tree, pagepool, nr, get_extent, &em_cached,
-                                  &bio, 0, &bio_flags, READ);
+                                  &bio, 0, &bio_flags, READ, &prev_em_start);
 
        if (em_cached)
                free_extent_map(em_cached);