f2fs: compress: rename __cluster_may_compress

This patch renames __cluster_may_compress() to cluster_has_invalid_data() for
better readability.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 925a5ca..19097a1 100644 (file)
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -876,7 +876,7 @@ bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index)
        return is_page_in_cluster(cc, index);
 }
 
-static bool __cluster_may_compress(struct compress_ctx *cc)
+static bool cluster_has_invalid_data(struct compress_ctx *cc)
 {
        loff_t i_size = i_size_read(cc->inode);
        unsigned nr_pages = DIV_ROUND_UP(i_size, PAGE_SIZE);
@@ -889,9 +889,9 @@ static bool __cluster_may_compress(struct compress_ctx *cc)
 
                /* beyond EOF */
                if (page->index >= nr_pages)
-                       return false;
+                       return true;
        }
-       return true;
+       return false;
 }
 
 static int __f2fs_cluster_blocks(struct compress_ctx *cc, bool compr)
@@ -967,7 +967,7 @@ static bool cluster_may_compress(struct compress_ctx *cc)
                return false;
        if (unlikely(f2fs_cp_error(F2FS_I_SB(cc->inode))))
                return false;
-       return __cluster_may_compress(cc);
+       return !cluster_has_invalid_data(cc);
 }
 
 static void set_cluster_writeback(struct compress_ctx *cc)