bfs: drop vmtruncate (41ddaeeb) · Commits · 戴 / test

fs/bfs/file.c

+10 −5

Original line number	Diff line number	Diff line
		@@ -161,6 +161,14 @@ static int bfs_readpage(struct file file, struct page page)
		return block_read_full_page(page, bfs_get_block);
		}

		static void bfs_write_failed(struct address_space *mapping, loff_t to)
		{
		struct inode *inode = mapping->host;

		if (to > inode->i_size)
		truncate_pagecache(inode, to, inode->i_size);
		}

		static int bfs_write_begin(struct file file, struct address_space mapping,
		loff_t pos, unsigned len, unsigned flags,
		struct page pagep, void fsdata)
		@@ -169,11 +177,8 @@ static int bfs_write_begin(struct file file, struct address_space mapping,

		ret = block_write_begin(mapping, pos, len, flags, pagep,
		bfs_get_block);
		if (unlikely(ret)) {
		loff_t isize = mapping->host->i_size;
		if (pos + len > isize)
		vmtruncate(mapping->host, isize);
		}
		if (unlikely(ret))
		bfs_write_failed(mapping, pos + len);

		return ret;
		}