btrfs: rename variables clashing with global function names
reported by gcc -Wshadow:
page_index, page_offset, new_inode, dev_name
Signed-off-by: David Sterba <dsterba@suse.cz>
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h
index 5100017..a12059f 100644
--- a/fs/btrfs/compression.h
+++ b/fs/btrfs/compression.h
@@ -37,7 +37,7 @@
int btrfs_decompress_buf2page(char *buf, unsigned long buf_start,
unsigned long total_out, u64 disk_start,
struct bio_vec *bvec, int vcnt,
- unsigned long *page_index,
+ unsigned long *pg_index,
unsigned long *pg_offset);
int btrfs_submit_compressed_write(struct inode *inode, u64 start,