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btrfs: unify extent_page_data type passed as void

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Functions called from extent_write_cache_pages used void* as generic
callback data, but all of them convert it to extent_page_data, or use it
directly.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-11-30 18:00:02 +01:00
parent 935db8531f
commit aab6e9edf0
1 changed files with 7 additions and 10 deletions
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17
fs/btrfs/extent_io.c
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@ -138,7 +138,7 @@ static void add_extent_changeset(struct extent_state *state, unsigned bits,
BUG_ON(ret < 0);
}
static void flush_write_bio(void *data);
static void flush_write_bio(struct extent_page_data *epd);
static inline struct btrfs_fs_info *
tree_fs_info(struct extent_io_tree *tree)
@ -3456,10 +3456,9 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
* and the end_io handler clears the writeback ranges
*/
static int __extent_writepage(struct page *page, struct writeback_control *wbc,
void *data)
struct extent_page_data *epd)
{
struct inode *inode = page->mapping->host;
struct extent_page_data *epd = data;
u64 start = page_offset(page);
u64 page_end = start + PAGE_SIZE - 1;
int ret;
@ -3905,7 +3904,7 @@ int btree_write_cache_pages(struct address_space *mapping,
*/
static int extent_write_cache_pages(struct address_space *mapping,
struct writeback_control *wbc,
void *data)
struct extent_page_data *epd)
{
struct inode *inode = mapping->host;
int ret = 0;
@ -3969,7 +3968,7 @@ static int extent_write_cache_pages(struct address_space *mapping,
* mapping
*/
if (!trylock_page(page)) {
flush_write_bio(data);
flush_write_bio(epd);
lock_page(page);
}
@ -3980,7 +3979,7 @@ static int extent_write_cache_pages(struct address_space *mapping,
if (wbc->sync_mode != WB_SYNC_NONE) {
if (PageWriteback(page))
flush_write_bio(data);
flush_write_bio(epd);
wait_on_page_writeback(page);
}
@ -3990,7 +3989,7 @@ static int extent_write_cache_pages(struct address_space *mapping,
continue;
}
ret = __extent_writepage(page, wbc, data);
ret = __extent_writepage(page, wbc, epd);
if (unlikely(ret == AOP_WRITEPAGE_ACTIVATE)) {
unlock_page(page);
@ -4038,10 +4037,8 @@ static int extent_write_cache_pages(struct address_space *mapping,
return ret;
}
static void flush_write_bio(void *data)
static void flush_write_bio(struct extent_page_data *epd)
{
struct extent_page_data *epd = data;
if (epd->bio) {
int ret;