btrfs/file.c: remove an unsed varialbe first_index

The commit b37392ea86761 ("Btrfs: cleanup unnecessary parameter
and variant of prepare_pages()") makes it redundant.

Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Shan Hai <haishan.bai@hotmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index b823fac91c92..b6695c43859d 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1469,7 +1469,6 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
         u64 release_bytes = 0;
         u64 lockstart;
         u64 lockend;
-        unsigned long first_index;
         size_t num_written = 0;
         int nrptrs;
         int ret = 0;
@@ -1485,8 +1484,6 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
         if (!pages)
                 return -ENOMEM;
 
-        first_index = pos >> PAGE_CACHE_SHIFT;
-
         while (iov_iter_count(i) > 0) {
                 size_t offset = pos & (PAGE_CACHE_SIZE - 1);
                 size_t write_bytes = min(iov_iter_count(i),