[U-Boot] [PATCH v5 08/16] ext4: Do not clear zalloc'ed buffers a second time

[Stefan Brüns]

zero_buffer is never written, thus clearing it is pointless.
journal_buffer is completely initialized by ext4fs_devread (or in case
of failure, not used).

Signed-off-by: Stefan Brüns <stefan.bruens at rwth-aachen.de>
Reviewed-by: Lukasz Majewski <l.majewski at samsung.com>
---
 fs/ext4/ext4_common.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index e58ba36..539d622 100644
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -929,7 +929,6 @@ restart:
 
 		if (le16_to_cpu(bgd[bg_idx].bg_flags) & EXT4_BG_BLOCK_UNINIT) {
 			uint16_t new_flags;
-			memset(zero_buffer, '\0', fs->blksz);
 			put_ext4((uint64_t)le32_to_cpu(bgd[bg_idx].block_id) * fs->blksz,
 				 zero_buffer, fs->blksz);
 			memcpy(fs->blk_bmaps[bg_idx], zero_buffer, fs->blksz);
@@ -946,7 +945,6 @@ restart:
 
 		/* journal backup */
 		if (prev_bg_bitmap_index != bg_idx) {
-			memset(journal_buffer, '\0', fs->blksz);
 			status = ext4fs_devread(
 						(lbaint_t)le32_to_cpu(bgd[bg_idx].block_id)
 						* fs->sect_perblk,
@@ -1040,7 +1038,6 @@ restart:
 		ibmap_idx = fs->curr_inode_no / inodes_per_grp;
 		if (le16_to_cpu(bgd[ibmap_idx].bg_flags) & EXT4_BG_INODE_UNINIT) {
 			int new_flags;
-			memset(zero_buffer, '\0', fs->blksz);
 			put_ext4((uint64_t)le32_to_cpu(bgd[ibmap_idx].inode_id) * fs->blksz,
 				 zero_buffer, fs->blksz);
 			new_flags = le16_to_cpu(bgd[ibmap_idx].bg_flags) & ~EXT4_BG_INODE_UNINIT;
-- 
2.9.3