Commit cbcb2872 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: invalidate inmemory page 



If user truncates file's data, we should truncate inmemory pages too.

Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 34ba94ba

fs/f2fs/data.c

+3 −0
Original line number Diff line number Diff line
@@ -1116,6 +1116,9 @@ static void f2fs_invalidate_data_page(struct page *page, unsigned int offset, 
	if (offset % PAGE_CACHE_SIZE || length != PAGE_CACHE_SIZE)

		return;



	if (f2fs_is_atomic_file(inode) || f2fs_is_volatile_file(inode))

		invalidate_inmem_page(inode, page);



	if (PageDirty(page))

		inode_dec_dirty_pages(inode);

	ClearPagePrivate(page);

fs/f2fs/f2fs.h

+1 −0
Original line number Diff line number Diff line
@@ -1297,6 +1297,7 @@ void destroy_node_manager_caches(void); 
 * segment.c

 */

void register_inmem_page(struct inode *, struct page *);

void invalidate_inmem_page(struct inode *, struct page *);

void commit_inmem_pages(struct inode *, bool);

void f2fs_balance_fs(struct f2fs_sb_info *);

void f2fs_balance_fs_bg(struct f2fs_sb_info *);

fs/f2fs/segment.c

+16 −0
Original line number Diff line number Diff line
@@ -203,6 +203,22 @@ void register_inmem_page(struct inode *inode, struct page *page) 
	mutex_unlock(&fi->inmem_lock);

}



void invalidate_inmem_page(struct inode *inode, struct page *page)

{

	struct f2fs_inode_info *fi = F2FS_I(inode);

	struct inmem_pages *cur;



	mutex_lock(&fi->inmem_lock);

	cur = radix_tree_lookup(&fi->inmem_root, page->index);

	if (cur) {

		radix_tree_delete(&fi->inmem_root, cur->page->index);

		f2fs_put_page(cur->page, 0);

		list_del(&cur->list);

		kmem_cache_free(inmem_entry_slab, cur);

	}

	mutex_unlock(&fi->inmem_lock);

}



void commit_inmem_pages(struct inode *inode, bool abort)

{

	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);