f2fs: don't handle error case of f2fs_compress_alloc_page()

f2fs_compress_alloc_page() uses mempool to allocate memory, it never
fail, don't handle error case in its callers.

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

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 236d890f560b0bce8c2d40c7675ab0d5a499b9e6..9662d635efbe638bd1158cfd7a35208f18a7ea9d 100644 (file)
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -649,13 +649,8 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
                goto destroy_compress_ctx;
        }
 
-       for (i = 0; i < cc->nr_cpages; i++) {
+       for (i = 0; i < cc->nr_cpages; i++)
                cc->cpages[i] = f2fs_compress_alloc_page();
-               if (!cc->cpages[i]) {
-                       ret = -ENOMEM;
-                       goto out_free_cpages;
-               }
-       }
 
        cc->rbuf = f2fs_vmap(cc->rpages, cc->cluster_size);
        if (!cc->rbuf) {
@@ -1574,8 +1569,6 @@ static int f2fs_prepare_decomp_mem(struct decompress_io_ctx *dic,
                }
 
                dic->tpages[i] = f2fs_compress_alloc_page();
-               if (!dic->tpages[i])
-                       return -ENOMEM;
        }
 
        dic->rbuf = f2fs_vmap(dic->tpages, dic->cluster_size);
@@ -1656,11 +1649,6 @@ struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc)
                struct page *page;
 
                page = f2fs_compress_alloc_page();
-               if (!page) {
-                       ret = -ENOMEM;
-                       goto out_free;
-               }
-
                f2fs_set_compressed_page(page, cc->inode,
                                        start_idx + i + 1, dic);
                dic->cpages[i] = page;