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[v4,61/68] btrfs: inode: make btrfs_truncate_block() to do page alignment

Message ID 20201021062554.68132-62-wqu@suse.com (mailing list archive)
State New, archived
Headers show
Series btrfs: add basic rw support for subpage sector size | expand

Commit Message

Qu Wenruo Oct. 21, 2020, 6:25 a.m. UTC 
This is mostly for subpage write back, as we still can only submit full
page write, we can't truncate the subpage sector.

Thus here we truncate the whole page other than each sector.

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 fs/btrfs/inode.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 8551815c4d65..f3bc894611e0 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4529,7 +4529,6 @@  int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
 int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
 			int front)
 {
-	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
 	struct address_space *mapping = inode->i_mapping;
 	struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
 	struct btrfs_ordered_extent *ordered;
@@ -4537,7 +4536,7 @@  int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
 	struct extent_changeset *data_reserved = NULL;
 	char *kaddr;
 	bool only_release_metadata = false;
-	u32 blocksize = fs_info->sectorsize;
+	u32 blocksize = PAGE_SIZE;
 	pgoff_t index = from >> PAGE_SHIFT;
 	unsigned offset = from & (blocksize - 1);
 	struct page *page;