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btrfs: drop get_extent from extent_page_data 

Previous patches cleaned up all places where
extent_page_data::get_extent was set and it was btrfs_get_extent all the
time, so we can simply call that instead.

This also reduces size of extent_page_data by 8 bytes which has positive
effect on stack consumption on various functions on the write out path.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-06-23 04:01:08 +02:00
parent deac642d7e
commit 3c98c62f7a
1 changed files with 1 additions and 6 deletions
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7
fs/btrfs/extent_io.c
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@ -109,8 +109,6 @@ struct tree_entry {
struct extent_page_data { struct extent_page_data {
struct bio *bio; struct bio *bio;
struct extent_io_tree *tree; struct extent_io_tree *tree;
get_extent_t *get_extent;
/* tells writepage not to lock the state bits for this range /* tells writepage not to lock the state bits for this range
* it still does the unlocking * it still does the unlocking
*/ */
@ -3373,7 +3371,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
page_end, NULL, 1); page_end, NULL, 1);
break; break;
} }
em = epd->get_extent(BTRFS_I(inode), page, pg_offset, cur, em = btrfs_get_extent(BTRFS_I(inode), page, pg_offset, cur,
end - cur + 1, 1); end - cur + 1, 1);
if (IS_ERR_OR_NULL(em)) { if (IS_ERR_OR_NULL(em)) {
SetPageError(page); SetPageError(page);
@ -4064,7 +4062,6 @@ int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
struct extent_page_data epd = { struct extent_page_data epd = {
.bio = NULL, .bio = NULL,
.tree = tree, .tree = tree,
.get_extent = btrfs_get_extent,
.extent_locked = 0, .extent_locked = 0,
.sync_io = wbc->sync_mode == WB_SYNC_ALL, .sync_io = wbc->sync_mode == WB_SYNC_ALL,
}; };
@ -4087,7 +4084,6 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
struct extent_page_data epd = { struct extent_page_data epd = {
.bio = NULL, .bio = NULL,
.tree = tree, .tree = tree,
.get_extent = btrfs_get_extent,
.extent_locked = 1, .extent_locked = 1,
.sync_io = mode == WB_SYNC_ALL, .sync_io = mode == WB_SYNC_ALL,
}; };
@ -4125,7 +4121,6 @@ int extent_writepages(struct extent_io_tree *tree,
struct extent_page_data epd = { struct extent_page_data epd = {
.bio = NULL, .bio = NULL,
.tree = tree, .tree = tree,
.get_extent = btrfs_get_extent,
.extent_locked = 0, .extent_locked = 0,
.sync_io = wbc->sync_mode == WB_SYNC_ALL, .sync_io = wbc->sync_mode == WB_SYNC_ALL,
}; };