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btrfs: let writepage_end_io_hook return void 

There's no error path in any of the instances, always return 0.

Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-02-17 15:18:32 +01:00
parent b9d04c607c
commit c3988d630a
3 changed files with 6 additions and 11 deletions
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9
fs/btrfs/extent_io.c
View File

@ -2437,12 +2437,9 @@ void end_extent_writepage(struct page *page, int err, u64 start, u64 end)
tree = &BTRFS_I(page->mapping->host)->io_tree; tree = &BTRFS_I(page->mapping->host)->io_tree;
if (tree->ops && tree->ops->writepage_end_io_hook) { if (tree->ops && tree->ops->writepage_end_io_hook)
ret = tree->ops->writepage_end_io_hook(page, start, tree->ops->writepage_end_io_hook(page, start, end, NULL,
end, NULL, uptodate); uptodate);
if (ret)
uptodate = 0;
}
if (!uptodate) { if (!uptodate) {
ClearPageUptodate(page); ClearPageUptodate(page);

2
fs/btrfs/extent_io.h
View File

@ -104,7 +104,7 @@ struct extent_io_ops {
int (*readpage_end_io_hook)(struct btrfs_io_bio *io_bio, u64 phy_offset, int (*readpage_end_io_hook)(struct btrfs_io_bio *io_bio, u64 phy_offset,
struct page *page, u64 start, u64 end, struct page *page, u64 start, u64 end,
int mirror); int mirror);
int (*writepage_end_io_hook)(struct page *page, u64 start, u64 end, void (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate); struct extent_state *state, int uptodate);
void (*set_bit_hook)(struct inode *inode, struct extent_state *state, void (*set_bit_hook)(struct inode *inode, struct extent_state *state,
unsigned *bits); unsigned *bits);

6
fs/btrfs/inode.c
View File

@ -2972,7 +2972,7 @@ static void finish_ordered_fn(struct btrfs_work *work)
btrfs_finish_ordered_io(ordered_extent); btrfs_finish_ordered_io(ordered_extent);
} }
static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end, static void btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate) struct extent_state *state, int uptodate)
{ {
struct inode *inode = page->mapping->host; struct inode *inode = page->mapping->host;
@ -2986,7 +2986,7 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
ClearPagePrivate2(page); ClearPagePrivate2(page);
if (!btrfs_dec_test_ordered_pending(inode, &ordered_extent, start, if (!btrfs_dec_test_ordered_pending(inode, &ordered_extent, start,
end - start + 1, uptodate)) end - start + 1, uptodate))
return 0; return;
if (btrfs_is_free_space_inode(BTRFS_I(inode))) { if (btrfs_is_free_space_inode(BTRFS_I(inode))) {
wq = fs_info->endio_freespace_worker; wq = fs_info->endio_freespace_worker;
@ -2999,8 +2999,6 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
btrfs_init_work(&ordered_extent->work, func, finish_ordered_fn, NULL, btrfs_init_work(&ordered_extent->work, func, finish_ordered_fn, NULL,
NULL); NULL);
btrfs_queue_work(wq, &ordered_extent->work); btrfs_queue_work(wq, &ordered_extent->work);
return 0;
} }
static int __readpage_endio_check(struct inode *inode, static int __readpage_endio_check(struct inode *inode,