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btrfs: sink writepage parameter to extent_write_cache_pages

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The function extent_write_cache_pages is modelled after
write_cache_pages which is a generic interface and the writepage
parameter makes sense there. In btrfs we know exactly which callback
we're going to use, so we can pass it directly.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-06-23 04:30:28 +02:00
parent 25b860e038
commit 935db8531f
1 changed files with 4 additions and 5 deletions
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9
fs/btrfs/extent_io.c
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@ -3893,8 +3893,7 @@ int btree_write_cache_pages(struct address_space *mapping,
* write_cache_pages - walk the list of dirty pages of the given address space and write all of them. * write_cache_pages - walk the list of dirty pages of the given address space and write all of them.
* @mapping: address space structure to write * @mapping: address space structure to write
* @wbc: subtract the number of written pages from *@wbc->nr_to_write * @wbc: subtract the number of written pages from *@wbc->nr_to_write
* @writepage: function called for each page * @data: data passed to __extent_writepage function
* @data: data passed to writepage function
* *
* If a page is already under I/O, write_cache_pages() skips it, even * If a page is already under I/O, write_cache_pages() skips it, even
* if it's dirty. This is desirable behaviour for memory-cleaning writeback, * if it's dirty. This is desirable behaviour for memory-cleaning writeback,
@ -3906,7 +3905,7 @@ int btree_write_cache_pages(struct address_space *mapping,
*/ */
static int extent_write_cache_pages(struct address_space *mapping, static int extent_write_cache_pages(struct address_space *mapping,
struct writeback_control *wbc, struct writeback_control *wbc,
writepage_t writepage, void *data) void *data)
{ {
struct inode *inode = mapping->host; struct inode *inode = mapping->host;
int ret = 0; int ret = 0;
@ -3991,7 +3990,7 @@ static int extent_write_cache_pages(struct address_space *mapping,
continue; continue;
} }
ret = (*writepage)(page, wbc, data); ret = __extent_writepage(page, wbc, data);
if (unlikely(ret == AOP_WRITEPAGE_ACTIVATE)) { if (unlikely(ret == AOP_WRITEPAGE_ACTIVATE)) {
unlock_page(page); unlock_page(page);
@ -4122,7 +4121,7 @@ int extent_writepages(struct extent_io_tree *tree,
.sync_io = wbc->sync_mode == WB_SYNC_ALL, .sync_io = wbc->sync_mode == WB_SYNC_ALL,
}; };
ret = extent_write_cache_pages(mapping, wbc, __extent_writepage, &epd); ret = extent_write_cache_pages(mapping, wbc, &epd);
flush_write_bio(&epd); flush_write_bio(&epd);
return ret; return ret;
} }