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-rw-r--r--fs/btrfs/ctree.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index e5a0941c4bde..07810891e204 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1683,9 +1683,10 @@ static noinline int generic_bin_search(struct extent_buffer *eb,
oip = offset_in_page(offset);
if (oip + key_size <= PAGE_SIZE) {
- const unsigned long idx = offset >> PAGE_SHIFT;
+ const unsigned long idx = get_eb_page_index(offset);
char *kaddr = page_address(eb->pages[idx]);
+ oip = get_eb_offset_in_page(eb, offset);
tmp = (struct btrfs_disk_key *)(kaddr + oip);
} else {
read_extent_buffer(eb, &unaligned, offset, key_size);