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Commit cc4c13d5 authored by David Sterba's avatar David Sterba
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btrfs: drop eb parameter from set/get token helpers 

Now that all set/get helpers use the eb from the token, we don't need to
pass it to many btrfs_token_*/btrfs_set_token_* helpers, saving some
stack space.
Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 4dae666a
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Showing with 130 additions and 158 deletions
fs/btrfs/ctree.c
View file @ cc4c13d5
...@@ -3517,9 +3517,9 @@ static int leaf_space_used(struct extent_buffer *l, int start, int nr) ...@@ -3517,9 +3517,9 @@ static int leaf_space_used(struct extent_buffer *l, int start, int nr)
btrfs_init_map_token(&token, l); btrfs_init_map_token(&token, l);
start_item = btrfs_item_nr(start); start_item = btrfs_item_nr(start);
end_item = btrfs_item_nr(end); end_item = btrfs_item_nr(end);
data_len = btrfs_token_item_offset(l, start_item, &token) + data_len = btrfs_token_item_offset(&token, start_item) +
btrfs_token_item_size(l, start_item, &token); btrfs_token_item_size(&token, start_item);
data_len = data_len - btrfs_token_item_offset(l, end_item, &token); data_len = data_len - btrfs_token_item_offset(&token, end_item);
data_len += sizeof(struct btrfs_item) * nr; data_len += sizeof(struct btrfs_item) * nr;
WARN_ON(data_len < 0); WARN_ON(data_len < 0);
return data_len; return data_len;
...@@ -3650,8 +3650,8 @@ static noinline int __push_leaf_right(struct btrfs_path *path, ...@@ -3650,8 +3650,8 @@ static noinline int __push_leaf_right(struct btrfs_path *path,
push_space = BTRFS_LEAF_DATA_SIZE(fs_info); push_space = BTRFS_LEAF_DATA_SIZE(fs_info);
for (i = 0; i < right_nritems; i++) { for (i = 0; i < right_nritems; i++) {
item = btrfs_item_nr(i); item = btrfs_item_nr(i);
push_space -= btrfs_token_item_size(right, item, &token); push_space -= btrfs_token_item_size(&token, item);
btrfs_set_token_item_offset(right, item, push_space, &token); btrfs_set_token_item_offset(&token, item, push_space);
} }
left_nritems -= push_items; left_nritems -= push_items;
...@@ -3859,10 +3859,9 @@ static noinline int __push_leaf_left(struct btrfs_path *path, int data_size, ...@@ -3859,10 +3859,9 @@ static noinline int __push_leaf_left(struct btrfs_path *path, int data_size,
item = btrfs_item_nr(i); item = btrfs_item_nr(i);
ioff = btrfs_token_item_offset(left, item, &token); ioff = btrfs_token_item_offset(&token, item);
btrfs_set_token_item_offset(left, item, btrfs_set_token_item_offset(&token, item,
ioff - (BTRFS_LEAF_DATA_SIZE(fs_info) - old_left_item_size), ioff - (BTRFS_LEAF_DATA_SIZE(fs_info) - old_left_item_size));
&token);
} }
btrfs_set_header_nritems(left, old_left_nritems + push_items); btrfs_set_header_nritems(left, old_left_nritems + push_items);
...@@ -3892,9 +3891,8 @@ static noinline int __push_leaf_left(struct btrfs_path *path, int data_size, ...@@ -3892,9 +3891,8 @@ static noinline int __push_leaf_left(struct btrfs_path *path, int data_size,
for (i = 0; i < right_nritems; i++) { for (i = 0; i < right_nritems; i++) {
item = btrfs_item_nr(i); item = btrfs_item_nr(i);
push_space = push_space - btrfs_token_item_size(right, push_space = push_space - btrfs_token_item_size(&token, item);
item, &token); btrfs_set_token_item_offset(&token, item, push_space);
btrfs_set_token_item_offset(right, item, push_space, &token);
} }
btrfs_mark_buffer_dirty(left); btrfs_mark_buffer_dirty(left);
...@@ -4036,9 +4034,8 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans, ...@@ -4036,9 +4034,8 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans,
struct btrfs_item *item = btrfs_item_nr(i); struct btrfs_item *item = btrfs_item_nr(i);
u32 ioff; u32 ioff;
ioff = btrfs_token_item_offset(right, item, &token); ioff = btrfs_token_item_offset(&token, item);
btrfs_set_token_item_offset(right, item, btrfs_set_token_item_offset(&token, item, ioff + rt_data_off);
ioff + rt_data_off, &token);
} }
btrfs_set_header_nritems(l, mid); btrfs_set_header_nritems(l, mid);
...@@ -4541,9 +4538,8 @@ void btrfs_truncate_item(struct btrfs_path *path, u32 new_size, int from_end) ...@@ -4541,9 +4538,8 @@ void btrfs_truncate_item(struct btrfs_path *path, u32 new_size, int from_end)
u32 ioff; u32 ioff;
item = btrfs_item_nr(i); item = btrfs_item_nr(i);
ioff = btrfs_token_item_offset(leaf, item, &token); ioff = btrfs_token_item_offset(&token, item);
btrfs_set_token_item_offset(leaf, item, btrfs_set_token_item_offset(&token, item, ioff + size_diff);
ioff + size_diff, &token);
} }
/* shift the data */ /* shift the data */
...@@ -4640,9 +4636,8 @@ void btrfs_extend_item(struct btrfs_path *path, u32 data_size) ...@@ -4640,9 +4636,8 @@ void btrfs_extend_item(struct btrfs_path *path, u32 data_size)
u32 ioff; u32 ioff;
item = btrfs_item_nr(i); item = btrfs_item_nr(i);
ioff = btrfs_token_item_offset(leaf, item, &token); ioff = btrfs_token_item_offset(&token, item);
btrfs_set_token_item_offset(leaf, item, btrfs_set_token_item_offset(&token, item, ioff - data_size);
ioff - data_size, &token);
} }
/* shift the data */ /* shift the data */
...@@ -4718,9 +4713,9 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path, ...@@ -4718,9 +4713,9 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
u32 ioff; u32 ioff;
item = btrfs_item_nr(i); item = btrfs_item_nr(i);
ioff = btrfs_token_item_offset(leaf, item, &token); ioff = btrfs_token_item_offset(&token, item);
btrfs_set_token_item_offset(leaf, item, btrfs_set_token_item_offset(&token, item,
ioff - total_data, &token); ioff - total_data);
} }
/* shift the items */ /* shift the items */
memmove_extent_buffer(leaf, btrfs_item_nr_offset(slot + nr), memmove_extent_buffer(leaf, btrfs_item_nr_offset(slot + nr),
...@@ -4739,10 +4734,9 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path, ...@@ -4739,10 +4734,9 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
btrfs_cpu_key_to_disk(&disk_key, cpu_key + i); btrfs_cpu_key_to_disk(&disk_key, cpu_key + i);
btrfs_set_item_key(leaf, &disk_key, slot + i); btrfs_set_item_key(leaf, &disk_key, slot + i);
item = btrfs_item_nr(slot + i); item = btrfs_item_nr(slot + i);
btrfs_set_token_item_offset(leaf, item, btrfs_set_token_item_offset(&token, item, data_end - data_size[i]);
data_end - data_size[i], &token);
data_end -= data_size[i]; data_end -= data_size[i];
btrfs_set_token_item_size(leaf, item, data_size[i], &token); btrfs_set_token_item_size(&token, item, data_size[i]);
} }
btrfs_set_header_nritems(leaf, nritems + nr); btrfs_set_header_nritems(leaf, nritems + nr);
...@@ -4930,9 +4924,8 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, ...@@ -4930,9 +4924,8 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
u32 ioff; u32 ioff;
item = btrfs_item_nr(i); item = btrfs_item_nr(i);
ioff = btrfs_token_item_offset(leaf, item, &token); ioff = btrfs_token_item_offset(&token, item);
btrfs_set_token_item_offset(leaf, item, btrfs_set_token_item_offset(&token, item, ioff + dsize);
ioff + dsize, &token);
} }
memmove_extent_buffer(leaf, btrfs_item_nr_offset(slot), memmove_extent_buffer(leaf, btrfs_item_nr_offset(slot),
......
fs/btrfs/ctree.h
View file @ cc4c13d5
...@@ -1340,7 +1340,7 @@ do { \ ...@@ -1340,7 +1340,7 @@ do { \
BTRFS_INODE_ROOT_ITEM_INIT) BTRFS_INODE_ROOT_ITEM_INIT)
struct btrfs_map_token { struct btrfs_map_token {
const struct extent_buffer *eb; struct extent_buffer *eb;
char *kaddr; char *kaddr;
unsigned long offset; unsigned long offset;
}; };
...@@ -1376,12 +1376,11 @@ static inline void btrfs_init_map_token(struct btrfs_map_token *token, ...@@ -1376,12 +1376,11 @@ static inline void btrfs_init_map_token(struct btrfs_map_token *token,
sizeof(((type *)0)->member))) sizeof(((type *)0)->member)))
#define DECLARE_BTRFS_SETGET_BITS(bits) \ #define DECLARE_BTRFS_SETGET_BITS(bits) \
u##bits btrfs_get_token_##bits(const struct extent_buffer *eb, \ u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \
const void *ptr, unsigned long off, \ const void *ptr, unsigned long off); \
struct btrfs_map_token *token); \ void btrfs_set_token_##bits(struct btrfs_map_token *token, \
void btrfs_set_token_##bits(struct extent_buffer *eb, const void *ptr, \ const void *ptr, unsigned long off, \
unsigned long off, u##bits val, \ u##bits val); \
struct btrfs_map_token *token); \
u##bits btrfs_get_##bits(const struct extent_buffer *eb, \ u##bits btrfs_get_##bits(const struct extent_buffer *eb, \
const void *ptr, unsigned long off); \ const void *ptr, unsigned long off); \
void btrfs_set_##bits(struct extent_buffer *eb, void *ptr, \ void btrfs_set_##bits(struct extent_buffer *eb, void *ptr, \
...@@ -1405,19 +1404,17 @@ static inline void btrfs_set_##name(struct extent_buffer *eb, type *s, \ ...@@ -1405,19 +1404,17 @@ static inline void btrfs_set_##name(struct extent_buffer *eb, type *s, \
BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \ BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
btrfs_set_##bits(eb, s, offsetof(type, member), val); \ btrfs_set_##bits(eb, s, offsetof(type, member), val); \
} \ } \
static inline u##bits btrfs_token_##name(const struct extent_buffer *eb,\ static inline u##bits btrfs_token_##name(struct btrfs_map_token *token, \
const type *s, \ const type *s) \
struct btrfs_map_token *token) \
{ \ { \
BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \ BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
return btrfs_get_token_##bits(eb, s, offsetof(type, member), token); \ return btrfs_get_token_##bits(token, s, offsetof(type, member));\
} \ } \
static inline void btrfs_set_token_##name(struct extent_buffer *eb, \ static inline void btrfs_set_token_##name(struct btrfs_map_token *token,\
type *s, u##bits val, \ type *s, u##bits val) \
struct btrfs_map_token *token) \
{ \ { \
BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \ BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
btrfs_set_token_##bits(eb, s, offsetof(type, member), val, token); \ btrfs_set_token_##bits(token, s, offsetof(type, member), val); \
} }
#define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \ #define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \
......
fs/btrfs/inode.c
View file @ cc4c13d5
...@@ -3352,43 +3352,40 @@ static void fill_inode_item(struct btrfs_trans_handle *trans, ...@@ -3352,43 +3352,40 @@ static void fill_inode_item(struct btrfs_trans_handle *trans,
btrfs_init_map_token(&token, leaf); btrfs_init_map_token(&token, leaf);
btrfs_set_token_inode_uid(leaf, item, i_uid_read(inode), &token); btrfs_set_token_inode_uid(&token, item, i_uid_read(inode));
btrfs_set_token_inode_gid(leaf, item, i_gid_read(inode), &token); btrfs_set_token_inode_gid(&token, item, i_gid_read(inode));
btrfs_set_token_inode_size(leaf, item, BTRFS_I(inode)->disk_i_size, btrfs_set_token_inode_size(&token, item, BTRFS_I(inode)->disk_i_size);
&token); btrfs_set_token_inode_mode(&token, item, inode->i_mode);
btrfs_set_token_inode_mode(leaf, item, inode->i_mode, &token); btrfs_set_token_inode_nlink(&token, item, inode->i_nlink);
btrfs_set_token_inode_nlink(leaf, item, inode->i_nlink, &token);
btrfs_set_token_timespec_sec(&token, &item->atime,
btrfs_set_token_timespec_sec(leaf, &item->atime, inode->i_atime.tv_sec);
inode->i_atime.tv_sec, &token); btrfs_set_token_timespec_nsec(&token, &item->atime,
btrfs_set_token_timespec_nsec(leaf, &item->atime, inode->i_atime.tv_nsec);
inode->i_atime.tv_nsec, &token);
btrfs_set_token_timespec_sec(&token, &item->mtime,
btrfs_set_token_timespec_sec(leaf, &item->mtime, inode->i_mtime.tv_sec);
inode->i_mtime.tv_sec, &token); btrfs_set_token_timespec_nsec(&token, &item->mtime,
btrfs_set_token_timespec_nsec(leaf, &item->mtime, inode->i_mtime.tv_nsec);
inode->i_mtime.tv_nsec, &token);
btrfs_set_token_timespec_sec(&token, &item->ctime,
btrfs_set_token_timespec_sec(leaf, &item->ctime, inode->i_ctime.tv_sec);
inode->i_ctime.tv_sec, &token); btrfs_set_token_timespec_nsec(&token, &item->ctime,
btrfs_set_token_timespec_nsec(leaf, &item->ctime, inode->i_ctime.tv_nsec);
inode->i_ctime.tv_nsec, &token);
btrfs_set_token_timespec_sec(&token, &item->otime,
btrfs_set_token_timespec_sec(leaf, &item->otime, BTRFS_I(inode)->i_otime.tv_sec);
BTRFS_I(inode)->i_otime.tv_sec, &token); btrfs_set_token_timespec_nsec(&token, &item->otime,
btrfs_set_token_timespec_nsec(leaf, &item->otime, BTRFS_I(inode)->i_otime.tv_nsec);
BTRFS_I(inode)->i_otime.tv_nsec, &token);
btrfs_set_token_inode_nbytes(&token, item, inode_get_bytes(inode));
btrfs_set_token_inode_nbytes(leaf, item, inode_get_bytes(inode), btrfs_set_token_inode_generation(&token, item,
&token); BTRFS_I(inode)->generation);
btrfs_set_token_inode_generation(leaf, item, BTRFS_I(inode)->generation, btrfs_set_token_inode_sequence(&token, item, inode_peek_iversion(inode));
&token); btrfs_set_token_inode_transid(&token, item, trans->transid);
btrfs_set_token_inode_sequence(leaf, item, inode_peek_iversion(inode), btrfs_set_token_inode_rdev(&token, item, inode->i_rdev);
&token); btrfs_set_token_inode_flags(&token, item, BTRFS_I(inode)->flags);
btrfs_set_token_inode_transid(leaf, item, trans->transid, &token); btrfs_set_token_inode_block_group(&token, item, 0);
btrfs_set_token_inode_rdev(leaf, item, inode->i_rdev, &token);
btrfs_set_token_inode_flags(leaf, item, BTRFS_I(inode)->flags, &token);
btrfs_set_token_inode_block_group(leaf, item, 0, &token);
} }
/* /*
......
fs/btrfs/struct-funcs.c
View file @ cc4c13d5
...@@ -38,9 +38,8 @@ static inline void put_unaligned_le8(u8 val, void *p) ...@@ -38,9 +38,8 @@ static inline void put_unaligned_le8(u8 val, void *p)
*/ */
#define DEFINE_BTRFS_SETGET_BITS(bits) \ #define DEFINE_BTRFS_SETGET_BITS(bits) \
u##bits btrfs_get_token_##bits(const struct extent_buffer *eb, \ u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \
const void *ptr, unsigned long off, \ const void *ptr, unsigned long off) \
struct btrfs_map_token *token) \
{ \ { \
unsigned long part_offset = (unsigned long)ptr; \ unsigned long part_offset = (unsigned long)ptr; \
unsigned long offset = part_offset + off; \ unsigned long offset = part_offset + off; \
...@@ -53,7 +52,6 @@ u##bits btrfs_get_token_##bits(const struct extent_buffer *eb, \ ...@@ -53,7 +52,6 @@ u##bits btrfs_get_token_##bits(const struct extent_buffer *eb, \
u##bits res; \ u##bits res; \
\ \
ASSERT(token); \ ASSERT(token); \
ASSERT(token->eb == eb); \
\ \
if (token->kaddr && token->offset <= offset && \ if (token->kaddr && token->offset <= offset && \
(token->offset + PAGE_SIZE >= offset + size)) { \ (token->offset + PAGE_SIZE >= offset + size)) { \
...@@ -101,10 +99,9 @@ u##bits btrfs_get_##bits(const struct extent_buffer *eb, \ ...@@ -101,10 +99,9 @@ u##bits btrfs_get_##bits(const struct extent_buffer *eb, \
res = get_unaligned_le##bits(p + off); \ res = get_unaligned_le##bits(p + off); \
return res; \ return res; \
} \ } \
void btrfs_set_token_##bits(struct extent_buffer *eb, \ void btrfs_set_token_##bits(struct btrfs_map_token *token, \
const void *ptr, unsigned long off, \ const void *ptr, unsigned long off, \
u##bits val, \ u##bits val) \
struct btrfs_map_token *token) \
{ \ { \
unsigned long part_offset = (unsigned long)ptr; \ unsigned long part_offset = (unsigned long)ptr; \
unsigned long offset = part_offset + off; \ unsigned long offset = part_offset + off; \
...@@ -116,7 +113,6 @@ void btrfs_set_token_##bits(struct extent_buffer *eb, \ ...@@ -116,7 +113,6 @@ void btrfs_set_token_##bits(struct extent_buffer *eb, \
int size = sizeof(u##bits); \ int size = sizeof(u##bits); \
\ \
ASSERT(token); \ ASSERT(token); \
ASSERT(token->eb == eb); \
\ \
if (token->kaddr && token->offset <= offset && \ if (token->kaddr && token->offset <= offset && \
(token->offset + PAGE_SIZE >= offset + size)) { \ (token->offset + PAGE_SIZE >= offset + size)) { \
......
fs/btrfs/tree-log.c
View file @ cc4c13d5
...@@ -509,8 +509,8 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans, ...@@ -509,8 +509,8 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
struct btrfs_map_token token; struct btrfs_map_token token;
btrfs_init_map_token(&token, dst_eb); btrfs_init_map_token(&token, dst_eb);
btrfs_set_token_inode_size(dst_eb, dst_item, btrfs_set_token_inode_size(&token, dst_item,
ino_size, &token); ino_size);
} }
goto no_copy; goto no_copy;
} }
...@@ -3852,44 +3852,41 @@ static void fill_inode_item(struct btrfs_trans_handle *trans, ...@@ -3852,44 +3852,41 @@ static void fill_inode_item(struct btrfs_trans_handle *trans,
* just to say 'this inode exists' and a logging * just to say 'this inode exists' and a logging
* to say 'update this inode with these values' * to say 'update this inode with these values'
*/ */
btrfs_set_token_inode_generation(leaf, item, 0, &token); btrfs_set_token_inode_generation(&token, item, 0);
btrfs_set_token_inode_size(leaf, item, logged_isize, &token); btrfs_set_token_inode_size(&token, item, logged_isize);
} else { } else {
btrfs_set_token_inode_generation(leaf, item, btrfs_set_token_inode_generation(&token, item,
BTRFS_I(inode)->generation, BTRFS_I(inode)->generation);
&token); btrfs_set_token_inode_size(&token, item, inode->i_size);
btrfs_set_token_inode_size(leaf, item, inode->i_size, &token); }
}
btrfs_set_token_inode_uid(&token, item, i_uid_read(inode));
btrfs_set_token_inode_uid(leaf, item, i_uid_read(inode), &token); btrfs_set_token_inode_gid(&token, item, i_gid_read(inode));
btrfs_set_token_inode_gid(leaf, item, i_gid_read(inode), &token); btrfs_set_token_inode_mode(&token, item, inode->i_mode);
btrfs_set_token_inode_mode(leaf, item, inode->i_mode, &token); btrfs_set_token_inode_nlink(&token, item, inode->i_nlink);
btrfs_set_token_inode_nlink(leaf, item, inode->i_nlink, &token);
btrfs_set_token_timespec_sec(&token, &item->atime,
btrfs_set_token_timespec_sec(leaf, &item->atime, inode->i_atime.tv_sec);
inode->i_atime.tv_sec, &token); btrfs_set_token_timespec_nsec(&token, &item->atime,
btrfs_set_token_timespec_nsec(leaf, &item->atime, inode->i_atime.tv_nsec);
inode->i_atime.tv_nsec, &token);
btrfs_set_token_timespec_sec(&token, &item->mtime,
btrfs_set_token_timespec_sec(leaf, &item->mtime, inode->i_mtime.tv_sec);
inode->i_mtime.tv_sec, &token); btrfs_set_token_timespec_nsec(&token, &item->mtime,
btrfs_set_token_timespec_nsec(leaf, &item->mtime, inode->i_mtime.tv_nsec);
inode->i_mtime.tv_nsec, &token);
btrfs_set_token_timespec_sec(&token, &item->ctime,
btrfs_set_token_timespec_sec(leaf, &item->ctime, inode->i_ctime.tv_sec);
inode->i_ctime.tv_sec, &token); btrfs_set_token_timespec_nsec(&token, &item->ctime,
btrfs_set_token_timespec_nsec(leaf, &item->ctime, inode->i_ctime.tv_nsec);
inode->i_ctime.tv_nsec, &token);
btrfs_set_token_inode_nbytes(&token, item, inode_get_bytes(inode));
btrfs_set_token_inode_nbytes(leaf, item, inode_get_bytes(inode),
&token); btrfs_set_token_inode_sequence(&token, item, inode_peek_iversion(inode));
btrfs_set_token_inode_transid(&token, item, trans->transid);
btrfs_set_token_inode_sequence(leaf, item, btrfs_set_token_inode_rdev(&token, item, inode->i_rdev);
inode_peek_iversion(inode), &token); btrfs_set_token_inode_flags(&token, item, BTRFS_I(inode)->flags);
btrfs_set_token_inode_transid(leaf, item, trans->transid, &token); btrfs_set_token_inode_block_group(&token, item, 0);
btrfs_set_token_inode_rdev(leaf, item, inode->i_rdev, &token);
btrfs_set_token_inode_flags(leaf, item, BTRFS_I(inode)->flags, &token);
btrfs_set_token_inode_block_group(leaf, item, 0, &token);
} }
static int log_inode_item(struct btrfs_trans_handle *trans, static int log_inode_item(struct btrfs_trans_handle *trans,
...@@ -4163,43 +4160,35 @@ static int log_one_extent(struct btrfs_trans_handle *trans, ...@@ -4163,43 +4160,35 @@ static int log_one_extent(struct btrfs_trans_handle *trans,
fi = btrfs_item_ptr(leaf, path->slots[0], fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item); struct btrfs_file_extent_item);
btrfs_set_token_file_extent_generation(leaf, fi, trans->transid, btrfs_set_token_file_extent_generation(&token, fi, trans->transid);
&token);
if (test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) if (test_bit(EXTENT_FLAG_PREALLOC, &em->flags))
btrfs_set_token_file_extent_type(leaf, fi, btrfs_set_token_file_extent_type(&token, fi,
BTRFS_FILE_EXTENT_PREALLOC, BTRFS_FILE_EXTENT_PREALLOC);
&token);
else else
btrfs_set_token_file_extent_type(leaf, fi, btrfs_set_token_file_extent_type(&token, fi,
BTRFS_FILE_EXTENT_REG, BTRFS_FILE_EXTENT_REG);
&token);
block_len = max(em->block_len, em->orig_block_len); block_len = max(em->block_len, em->orig_block_len);
if (em->compress_type != BTRFS_COMPRESS_NONE) { if (em->compress_type != BTRFS_COMPRESS_NONE) {
btrfs_set_token_file_extent_disk_bytenr(leaf, fi, btrfs_set_token_file_extent_disk_bytenr(&token, fi,
em->block_start, em->block_start);
&token); btrfs_set_token_file_extent_disk_num_bytes(&token, fi, block_len);
btrfs_set_token_file_extent_disk_num_bytes(leaf, fi, block_len,
&token);
} else if (em->block_start < EXTENT_MAP_LAST_BYTE) { } else if (em->block_start < EXTENT_MAP_LAST_BYTE) {
btrfs_set_token_file_extent_disk_bytenr(leaf, fi, btrfs_set_token_file_extent_disk_bytenr(&token, fi,
em->block_start - em->block_start -
extent_offset, &token); extent_offset);
btrfs_set_token_file_extent_disk_num_bytes(leaf, fi, block_len, btrfs_set_token_file_extent_disk_num_bytes(&token, fi, block_len);
&token);
} else { } else {
btrfs_set_token_file_extent_disk_bytenr(leaf, fi, 0, &token); btrfs_set_token_file_extent_disk_bytenr(&token, fi, 0);
btrfs_set_token_file_extent_disk_num_bytes(leaf, fi, 0, btrfs_set_token_file_extent_disk_num_bytes(&token, fi, 0);
&token); }
}
btrfs_set_token_file_extent_offset(&token, fi, extent_offset);
btrfs_set_token_file_extent_offset(leaf, fi, extent_offset, &token); btrfs_set_token_file_extent_num_bytes(&token, fi, em->len);
btrfs_set_token_file_extent_num_bytes(leaf, fi, em->len, &token); btrfs_set_token_file_extent_ram_bytes(&token, fi, em->ram_bytes);
btrfs_set_token_file_extent_ram_bytes(leaf, fi, em->ram_bytes, &token); btrfs_set_token_file_extent_compression(&token, fi, em->compress_type);
btrfs_set_token_file_extent_compression(leaf, fi, em->compress_type, btrfs_set_token_file_extent_encryption(&token, fi, 0);
&token); btrfs_set_token_file_extent_other_encoding(&token, fi, 0);
btrfs_set_token_file_extent_encryption(leaf, fi, 0, &token);
btrfs_set_token_file_extent_other_encoding(leaf, fi, 0, &token);
btrfs_mark_buffer_dirty(leaf); btrfs_mark_buffer_dirty(leaf);
btrfs_release_path(path); btrfs_release_path(path);
......
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