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Date: Wed, 26 Oct 2011 15:11:50 +0800
From: Yongqiang Yang <xiaoqiangnk@...il.com>
To: tytso@....edu
Cc: linux-ext4@...r.kernel.org, Yongqiang Yang <xiaoqiangnk@...il.com>
Subject: [PATCH 2/4] ext4: move variable to its scope
Signed-off-by: Yongqiang Yang <xiaoqiangnk@...il.com>
---
fs/ext4/extents.c | 15 ++++++++-------
1 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index f887023..8b09a47 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -117,10 +117,9 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
struct ext4_ext_path *path,
ext4_lblk_t block)
{
- int depth;
-
if (path) {
struct ext4_extent *ex;
+ int depth;
depth = path->p_depth;
/*
@@ -247,7 +246,7 @@ static inline int ext4_ext_space_root_idx(struct inode *inode, int check)
int ext4_ext_calc_metadata_amount(struct inode *inode, ext4_lblk_t lblock)
{
struct ext4_inode_info *ei = EXT4_I(inode);
- int idxs, num = 0;
+ int idxs;
idxs = ((inode->i_sb->s_blocksize - sizeof(struct ext4_extent_header))
/ sizeof(struct ext4_extent_idx));
@@ -262,6 +261,7 @@ int ext4_ext_calc_metadata_amount(struct inode *inode, ext4_lblk_t lblock)
*/
if (ei->i_da_metadata_calc_len &&
ei->i_da_metadata_calc_last_lblock+1 == lblock) {
+ int num = 0;
if ((ei->i_da_metadata_calc_len % idxs) == 0)
num++;
if ((ei->i_da_metadata_calc_len % (idxs*idxs)) == 0)
@@ -324,8 +324,6 @@ static int ext4_valid_extent_entries(struct inode *inode,
struct ext4_extent_header *eh,
int depth)
{
- struct ext4_extent *ext;
- struct ext4_extent_idx *ext_idx;
unsigned short entries;
if (eh->eh_entries == 0)
return 1;
@@ -334,6 +332,7 @@ static int ext4_valid_extent_entries(struct inode *inode,
if (depth == 0) {
/* leaf entries */
+ struct ext4_extent *ext;
ext = EXT_FIRST_EXTENT(eh);
while (entries) {
if (!ext4_valid_extent(inode, ext))
@@ -342,6 +341,7 @@ static int ext4_valid_extent_entries(struct inode *inode,
entries--;
}
} else {
+ struct ext4_extent_idx *ext_idx;
ext_idx = EXT_FIRST_INDEX(eh);
while (entries) {
if (!ext4_valid_extent_idx(inode, ext_idx))
@@ -3720,13 +3720,12 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
ext4_fsblk_t newblock = 0;
int free_on_err = 0, err = 0, depth, ret;
unsigned int allocated = 0, offset = 0;
- unsigned int allocated_clusters = 0, reserved_clusters = 0;
+ unsigned int allocated_clusters = 0;
unsigned int punched_out = 0;
unsigned int result = 0;
struct ext4_allocation_request ar;
ext4_io_end_t *io = EXT4_I(inode)->cur_aio_dio;
ext4_lblk_t cluster_offset;
- struct ext4_map_blocks punch_map;
ext_debug("blocks %u/%u requested for inode %lu\n",
map->m_lblk, map->m_len, inode->i_ino);
@@ -3802,6 +3801,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
/* if found extent covers block, simply return it */
if (in_range(map->m_lblk, ee_block, ee_len)) {
+ struct ext4_map_blocks punch_map;
ext4_fsblk_t partial_cluster = 0;
newblock = map->m_lblk - ee_block + ee_start;
@@ -4077,6 +4077,7 @@ got_allocated_blocks:
* block allocation which had been deferred till now.
*/
if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) {
+ unsigned int reserved_clusters = 0;
/*
* Check how many clusters we had reserved this allocted range.
*/
--
1.7.5.1
--
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