This patch deletes local variable disk_num_bytes as its value
is same as num_bytes in the function cow_file_range().
Signed-off-by: Anand Jain <anand.j...@oracle.com>
---
fs/btrfs/inode.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 96e5f8a49d4c..79f073e94f2d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -944,7 +944,6 @@ static noinline int cow_file_range(struct inode *inode,
u64 alloc_hint = 0;
u64 num_bytes;
unsigned long ram_size;
- u64 disk_num_bytes;
u64 cur_alloc_size;
u64 blocksize = root->sectorsize;
struct btrfs_key ins;
@@ -960,7 +959,6 @@ static noinline int cow_file_range(struct inode *inode,
num_bytes = ALIGN(end - start + 1, blocksize);
num_bytes = max(blocksize, num_bytes);
- disk_num_bytes = num_bytes;
/* if this is a small write inside eof, kick off defrag */
if (num_bytes < SZ_64K &&
@@ -989,16 +987,16 @@ static noinline int cow_file_range(struct inode *inode,
}
}
- BUG_ON(disk_num_bytes >
+ BUG_ON(num_bytes >
btrfs_super_total_bytes(root->fs_info->super_copy));
alloc_hint = get_extent_allocation_hint(inode, start, num_bytes);
btrfs_drop_extent_cache(inode, start, start + num_bytes - 1, 0);
- while (disk_num_bytes > 0) {
+ while (num_bytes > 0) {
unsigned long op;
- cur_alloc_size = disk_num_bytes;
+ cur_alloc_size = num_bytes;
ret = btrfs_reserve_extent(root, cur_alloc_size, cur_alloc_size,
root->sectorsize, 0, alloc_hint,
&ins, 1, 1);
@@ -1055,7 +1053,7 @@ static noinline int cow_file_range(struct inode *inode,
btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
- if (disk_num_bytes < cur_alloc_size)
+ if (num_bytes < cur_alloc_size)
break;
/* we're not doing compressed IO, don't unlock the first
@@ -1073,7 +1071,6 @@ static noinline int cow_file_range(struct inode *inode,
delalloc_end, locked_page,
EXTENT_LOCKED | EXTENT_DELALLOC,
op);
- disk_num_bytes -= cur_alloc_size;
num_bytes -= cur_alloc_size;
alloc_hint = ins.objectid + ins.offset;
start += cur_alloc_size;
--
2.10.0
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