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btrfs: remove constant parameter to memset_extent_buffer and rename it

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The only memset we do is to 0, so sink the parameter to the function and
simplify all calls. Rename the function to reflect the behaviour.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-11-08 18:09:03 +01:00
parent fba1acf9ff
commit b159fa2808
12 changed files with 21 additions and 21 deletions
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6
fs/btrfs/ctree.c
View File

@ -3348,7 +3348,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
root_add_used(root, root->nodesize);
memset_extent_buffer(c, 0, 0, sizeof(struct btrfs_header));
memzero_extent_buffer(c, 0, sizeof(struct btrfs_header));
btrfs_set_header_nritems(c, 1);
btrfs_set_header_level(c, level);
btrfs_set_header_bytenr(c, c->start);
@ -3484,7 +3484,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
root_add_used(root, root->nodesize);
memset_extent_buffer(split, 0, 0, sizeof(struct btrfs_header));
memzero_extent_buffer(split, 0, sizeof(struct btrfs_header));
btrfs_set_header_level(split, btrfs_header_level(c));
btrfs_set_header_bytenr(split, split->start);
btrfs_set_header_generation(split, trans->transid);
@ -4270,7 +4270,7 @@ again:
root_add_used(root, root->nodesize);
memset_extent_buffer(right, 0, 0, sizeof(struct btrfs_header));
memzero_extent_buffer(right, 0, sizeof(struct btrfs_header));
btrfs_set_header_bytenr(right, right->start);
btrfs_set_header_generation(right, trans->transid);
btrfs_set_header_backref_rev(right, BTRFS_MIXED_BACKREF_REV);

4
fs/btrfs/disk-io.c
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@ -1412,7 +1412,7 @@ struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
goto fail;
}
memset_extent_buffer(leaf, 0, 0, sizeof(struct btrfs_header));
memzero_extent_buffer(leaf, 0, sizeof(struct btrfs_header));
btrfs_set_header_bytenr(leaf, leaf->start);
btrfs_set_header_generation(leaf, trans->transid);
btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV);
@ -1496,7 +1496,7 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans,
return ERR_CAST(leaf);
}
memset_extent_buffer(leaf, 0, 0, sizeof(struct btrfs_header));
memzero_extent_buffer(leaf, 0, sizeof(struct btrfs_header));
btrfs_set_header_bytenr(leaf, leaf->start);
btrfs_set_header_generation(leaf, trans->transid);
btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV);

2
fs/btrfs/extent-tree.c
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@ -1114,7 +1114,7 @@ static int convert_extent_item_v0(struct btrfs_trans_handle *trans,
BTRFS_BLOCK_FLAG_FULL_BACKREF);
bi = (struct btrfs_tree_block_info *)(item + 1);
/* FIXME: get first key of the block */
memset_extent_buffer(leaf, 0, (unsigned long)bi, sizeof(*bi));
memzero_extent_buffer(leaf, (unsigned long)bi, sizeof(*bi));
btrfs_set_tree_block_level(leaf, bi, (int)owner);
} else {
btrfs_set_extent_flags(leaf, item, BTRFS_EXTENT_FLAG_DATA);

10
fs/btrfs/extent_io.c
View File

@ -3743,7 +3743,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
if (btrfs_header_level(eb) > 0) {
end = btrfs_node_key_ptr_offset(nritems);
memset_extent_buffer(eb, 0, end, eb->len - end);
memzero_extent_buffer(eb, end, eb->len - end);
} else {
/*
* leaf:
@ -3752,7 +3752,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
start = btrfs_item_nr_offset(nritems);
end = btrfs_leaf_data(eb) +
leaf_data_end(fs_info->tree_root, eb);
memset_extent_buffer(eb, 0, start, end - start);
memzero_extent_buffer(eb, start, end - start);
}
for (i = 0; i < num_pages; i++) {
@ -5517,8 +5517,8 @@ void write_extent_buffer(struct extent_buffer *eb, const void *srcv,
}
}
void memset_extent_buffer(struct extent_buffer *eb, char c,
unsigned long start, unsigned long len)
void memzero_extent_buffer(struct extent_buffer *eb, unsigned long start,
unsigned long len)
{
size_t cur;
size_t offset;
@ -5538,7 +5538,7 @@ void memset_extent_buffer(struct extent_buffer *eb, char c,
cur = min(len, PAGE_SIZE - offset);
kaddr = page_address(page);
memset(kaddr + offset, c, cur);
memset(kaddr + offset, 0, cur);
len -= cur;
offset = 0;

4
fs/btrfs/extent_io.h
View File

@ -417,8 +417,8 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_offset, unsigned long len);
void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_offset, unsigned long len);
void memset_extent_buffer(struct extent_buffer *eb, char c,
unsigned long start, unsigned long len);
void memzero_extent_buffer(struct extent_buffer *eb, unsigned long start,
unsigned long len);
int extent_buffer_test_bit(struct extent_buffer *eb, unsigned long start,
unsigned long pos);
void extent_buffer_bitmap_set(struct extent_buffer *eb, unsigned long start,

2
fs/btrfs/file-item.c
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@ -689,7 +689,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
item_offset = btrfs_item_ptr_offset(leaf,
path->slots[0]);
memset_extent_buffer(leaf, 0, item_offset + offset,
memzero_extent_buffer(leaf, item_offset + offset,
shift_len);
key.offset = bytenr;

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

@ -153,7 +153,7 @@ static int __create_free_space_inode(struct btrfs_root *root,
inode_item = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_inode_item);
btrfs_item_key(leaf, &disk_key, path->slots[0]);
memset_extent_buffer(leaf, 0, (unsigned long)inode_item,
memzero_extent_buffer(leaf, (unsigned long)inode_item,
sizeof(*inode_item));
btrfs_set_inode_generation(leaf, inode_item, trans->transid);
btrfs_set_inode_size(leaf, inode_item, 0);
@ -181,7 +181,7 @@ static int __create_free_space_inode(struct btrfs_root *root,
leaf = path->nodes[0];
header = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_free_space_header);
memset_extent_buffer(leaf, 0, (unsigned long)header, sizeof(*header));
memzero_extent_buffer(leaf, (unsigned long)header, sizeof(*header));
btrfs_set_free_space_key(leaf, header, &disk_key);
btrfs_mark_buffer_dirty(leaf);
btrfs_release_path(path);

2
fs/btrfs/inode.c
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@ -6276,7 +6276,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_item);
memset_extent_buffer(path->nodes[0], 0, (unsigned long)inode_item,
memzero_extent_buffer(path->nodes[0], (unsigned long)inode_item,
sizeof(*inode_item));
fill_inode_item(trans, path->nodes[0], inode_item, inode);

2
fs/btrfs/ioctl.c
View File

@ -501,7 +501,7 @@ static noinline int create_subvol(struct inode *dir,
goto fail;
}
memset_extent_buffer(leaf, 0, 0, sizeof(struct btrfs_header));
memzero_extent_buffer(leaf, 0, sizeof(struct btrfs_header));
btrfs_set_header_bytenr(leaf, leaf->start);
btrfs_set_header_generation(leaf, trans->transid);
btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV);

2
fs/btrfs/relocation.c
View File

@ -4255,7 +4255,7 @@ static int __insert_orphan_inode(struct btrfs_trans_handle *trans,
leaf = path->nodes[0];
item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_inode_item);
memset_extent_buffer(leaf, 0, (unsigned long)item, sizeof(*item));
memzero_extent_buffer(leaf, (unsigned long)item, sizeof(*item));
btrfs_set_inode_generation(leaf, item, 1);
btrfs_set_inode_size(leaf, item, 0);
btrfs_set_inode_mode(leaf, item, S_IFREG | 0600);

2
fs/btrfs/tests/extent-io-tests.c
View File

@ -306,7 +306,7 @@ static int __test_eb_bitmaps(unsigned long *bitmap, struct extent_buffer *eb,
int ret;
memset(bitmap, 0, len);
memset_extent_buffer(eb, 0, 0, len);
memzero_extent_buffer(eb, 0, len);
if (memcmp_extent_buffer(eb, bitmap, 0, len) != 0) {
test_msg("Bitmap was not zeroed\n");
return -EINVAL;

2
fs/btrfs/volumes.c
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@ -3062,7 +3062,7 @@ static int insert_balance_item(struct btrfs_root *root,
leaf = path->nodes[0];
item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_balance_item);
memset_extent_buffer(leaf, 0, (unsigned long)item, sizeof(*item));
memzero_extent_buffer(leaf, (unsigned long)item, sizeof(*item));
btrfs_cpu_balance_args_to_disk(&disk_bargs, &bctl->data);
btrfs_set_balance_data(leaf, item, &disk_bargs);