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Btrfs: cleanup unused arguments of btrfs_csum_data 

Argument 'root' is no more used in btrfs_csum_data().

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Liu Bo 2013-03-14 14:57:45 +00:00 committed by Josef Bacik
parent 087488109a
commit b0496686ba
7 changed files with 15 additions and 21 deletions
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3
fs/btrfs/compression.c
View File

@ -106,7 +106,6 @@ static int check_compressed_csum(struct inode *inode,
u64 disk_start)
{
int ret;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct page *page;
unsigned long i;
char *kaddr;
@ -121,7 +120,7 @@ static int check_compressed_csum(struct inode *inode,
csum = ~(u32)0;
kaddr = kmap_atomic(page);
csum = btrfs_csum_data(root, kaddr, csum, PAGE_CACHE_SIZE);
csum = btrfs_csum_data(kaddr, csum, PAGE_CACHE_SIZE);
btrfs_csum_final(csum, (char *)&csum);
kunmap_atomic(kaddr);

6
fs/btrfs/disk-io.c
View File

@ -238,7 +238,7 @@ out:
return em;
}
u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len)
u32 btrfs_csum_data(char *data, u32 seed, size_t len)
{
return crc32c(seed, data, len);
}
@ -274,7 +274,7 @@ static int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf,
if (err)
return 1;
cur_len = min(len, map_len - (offset - map_start));
crc = btrfs_csum_data(root, kaddr + offset - map_start,
crc = btrfs_csum_data(kaddr + offset - map_start,
crc, cur_len);
len -= cur_len;
offset += cur_len;
@ -2919,7 +2919,7 @@ static int write_dev_supers(struct btrfs_device *device,
btrfs_set_super_bytenr(sb, bytenr);
crc = ~(u32)0;
crc = btrfs_csum_data(NULL, (char *)sb +
crc = btrfs_csum_data((char *)sb +
BTRFS_CSUM_SIZE, crc,
BTRFS_SUPER_INFO_SIZE -
BTRFS_CSUM_SIZE);

2
fs/btrfs/disk-io.h
View File

@ -77,7 +77,7 @@ int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,
int atomic);
int btrfs_set_buffer_uptodate(struct extent_buffer *buf);
int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid);
u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len);
u32 btrfs_csum_data(char *data, u32 seed, size_t len);
void btrfs_csum_final(u32 crc, char *result);
int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
int metadata);

3
fs/btrfs/file-item.c
View File

@ -484,8 +484,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
data = kmap_atomic(bvec->bv_page);
sector_sum->sum = ~(u32)0;
sector_sum->sum = btrfs_csum_data(root,
data + bvec->bv_offset,
sector_sum->sum = btrfs_csum_data(data + bvec->bv_offset,
sector_sum->sum,
bvec->bv_len);
kunmap_atomic(data);

4
fs/btrfs/free-space-cache.c
View File

@ -431,7 +431,7 @@ static void io_ctl_set_crc(struct io_ctl *io_ctl, int index)
if (index == 0)
offset = sizeof(u32) * io_ctl->num_pages;
crc = btrfs_csum_data(io_ctl->root, io_ctl->orig + offset, crc,
crc = btrfs_csum_data(io_ctl->orig + offset, crc,
PAGE_CACHE_SIZE - offset);
btrfs_csum_final(crc, (char *)&crc);
io_ctl_unmap_page(io_ctl);
@ -461,7 +461,7 @@ static int io_ctl_check_crc(struct io_ctl *io_ctl, int index)
kunmap(io_ctl->pages[0]);
io_ctl_map_page(io_ctl, 0);
crc = btrfs_csum_data(io_ctl->root, io_ctl->orig + offset, crc,
crc = btrfs_csum_data(io_ctl->orig + offset, crc,
PAGE_CACHE_SIZE - offset);
btrfs_csum_final(crc, (char *)&crc);
if (val != crc) {

5
fs/btrfs/inode.c
View File

@ -2819,7 +2819,7 @@ static int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end,
if (ret)
goto zeroit;
csum = btrfs_csum_data(root, kaddr + offset, csum, end - start + 1);
csum = btrfs_csum_data(kaddr + offset, csum, end - start + 1);
btrfs_csum_final(csum, (char *)&csum);
if (csum != private)
goto zeroit;
@ -6919,7 +6919,6 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
struct bio_vec *bvec_end = bio->bi_io_vec + bio->bi_vcnt - 1;
struct bio_vec *bvec = bio->bi_io_vec;
struct inode *inode = dip->inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 start;
start = dip->logical_offset;
@ -6936,7 +6935,7 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
goto failed;
local_irq_save(flags);
kaddr = kmap_atomic(page);
csum = btrfs_csum_data(root, kaddr + bvec->bv_offset,
csum = btrfs_csum_data(kaddr + bvec->bv_offset,
csum, bvec->bv_len);
btrfs_csum_final(csum, (char *)&csum);
kunmap_atomic(kaddr);

13
fs/btrfs/scrub.c
View File

@ -1336,7 +1336,6 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
int page_num;
u8 calculated_csum[BTRFS_CSUM_SIZE];
u32 crc = ~(u32)0;
struct btrfs_root *root = fs_info->extent_root;
void *mapped_buffer;
WARN_ON(!sblock->pagev[0]->page);
@ -1365,12 +1364,11 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
for (page_num = 0;;) {
if (page_num == 0 && is_metadata)
crc = btrfs_csum_data(root,
crc = btrfs_csum_data(
((u8 *)mapped_buffer) + BTRFS_CSUM_SIZE,
crc, PAGE_SIZE - BTRFS_CSUM_SIZE);
else
crc = btrfs_csum_data(root, mapped_buffer, crc,
PAGE_SIZE);
crc = btrfs_csum_data(mapped_buffer, crc, PAGE_SIZE);
kunmap_atomic(mapped_buffer);
page_num++;
@ -1657,7 +1655,6 @@ static int scrub_checksum_data(struct scrub_block *sblock)
void *buffer;
u32 crc = ~(u32)0;
int fail = 0;
struct btrfs_root *root = sctx->dev_root;
u64 len;
int index;
@ -1674,7 +1671,7 @@ static int scrub_checksum_data(struct scrub_block *sblock)
for (;;) {
u64 l = min_t(u64, len, PAGE_SIZE);
crc = btrfs_csum_data(root, buffer, crc, l);
crc = btrfs_csum_data(buffer, crc, l);
kunmap_atomic(buffer);
len -= l;
if (len == 0)
@ -1744,7 +1741,7 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock)
for (;;) {
u64 l = min_t(u64, len, mapped_size);
crc = btrfs_csum_data(root, p, crc, l);
crc = btrfs_csum_data(p, crc, l);
kunmap_atomic(mapped_buffer);
len -= l;
if (len == 0)
@ -1805,7 +1802,7 @@ static int scrub_checksum_super(struct scrub_block *sblock)
for (;;) {
u64 l = min_t(u64, len, mapped_size);
crc = btrfs_csum_data(root, p, crc, l);
crc = btrfs_csum_data(p, crc, l);
kunmap_atomic(mapped_buffer);
len -= l;
if (len == 0)