ext4: remove initialized but not read variables
No real bugs found, just removed some dead code.
Found by gcc 4.6's new warnings.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d9d2671..b2948b04 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1999,7 +1999,6 @@
ext4_group_t ngroups, group, i;
int cr;
int err = 0;
- int bsbits;
struct ext4_sb_info *sbi;
struct super_block *sb;
struct ext4_buddy e4b;
@@ -2041,8 +2040,6 @@
ac->ac_2order = i - 1;
}
- bsbits = ac->ac_sb->s_blocksize_bits;
-
/* if stream allocation is enabled, use global goal */
if (ac->ac_flags & EXT4_MB_STREAM_ALLOC) {
/* TBD: may be hot point */
@@ -2712,7 +2709,6 @@
handle_t *handle, unsigned int reserv_blks)
{
struct buffer_head *bitmap_bh = NULL;
- struct ext4_super_block *es;
struct ext4_group_desc *gdp;
struct buffer_head *gdp_bh;
struct ext4_sb_info *sbi;
@@ -2725,8 +2721,6 @@
sb = ac->ac_sb;
sbi = EXT4_SB(sb);
- es = sbi->s_es;
-
err = -EIO;
bitmap_bh = ext4_read_block_bitmap(sb, ac->ac_b_ex.fe_group);
@@ -2850,7 +2844,7 @@
int bsbits, max;
ext4_lblk_t end;
loff_t size, orig_size, start_off;
- ext4_lblk_t start, orig_start;
+ ext4_lblk_t start;
struct ext4_inode_info *ei = EXT4_I(ac->ac_inode);
struct ext4_prealloc_space *pa;
@@ -2881,6 +2875,7 @@
size = size << bsbits;
if (size < i_size_read(ac->ac_inode))
size = i_size_read(ac->ac_inode);
+ orig_size = size;
/* max size of free chunks */
max = 2 << bsbits;
@@ -2922,8 +2917,8 @@
start_off = (loff_t)ac->ac_o_ex.fe_logical << bsbits;
size = ac->ac_o_ex.fe_len << bsbits;
}
- orig_size = size = size >> bsbits;
- orig_start = start = start_off >> bsbits;
+ size = size >> bsbits;
+ start = start_off >> bsbits;
/* don't cover already allocated blocks in selected range */
if (ar->pleft && start <= ar->lleft) {
@@ -3547,7 +3542,6 @@
ext4_group_t group;
ext4_grpblk_t bit;
unsigned long long grp_blk_start;
- sector_t start;
int err = 0;
int free = 0;
@@ -3567,10 +3561,9 @@
if (bit >= end)
break;
next = mb_find_next_bit(bitmap_bh->b_data, end, bit);
- start = ext4_group_first_block_no(sb, group) + bit;
mb_debug(1, " free preallocated %u/%u in group %u\n",
- (unsigned) start, (unsigned) next - bit,
- (unsigned) group);
+ (unsigned) ext4_group_first_block_no(sb, group) + bit,
+ (unsigned) next - bit, (unsigned) group);
free += next - bit;
if (ac) {
@@ -4494,7 +4487,6 @@
struct super_block *sb = inode->i_sb;
struct ext4_allocation_context *ac = NULL;
struct ext4_group_desc *gdp;
- struct ext4_super_block *es;
unsigned long freed = 0;
unsigned int overflow;
ext4_grpblk_t bit;
@@ -4513,7 +4505,6 @@
}
sbi = EXT4_SB(sb);
- es = EXT4_SB(sb)->s_es;
if (!(flags & EXT4_FREE_BLOCKS_VALIDATED) &&
!ext4_data_block_valid(sbi, block, count)) {
ext4_error(sb, "Freeing blocks not in datazone - "