diff options
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 57a2bc25b4d2..0276fa951641 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1955,6 +1955,13 @@ int btrfs_run_delalloc_range(struct btrfs_inode *inode, struct page *locked_page int ret; const bool zoned = btrfs_is_zoned(inode->root->fs_info); + /* + * The range must cover part of the @locked_page, or the returned + * @page_started can confuse the caller. + */ + ASSERT(!(end <= page_offset(locked_page) || + start >= page_offset(locked_page) + PAGE_SIZE)); + if (should_nocow(inode, start, end)) { /* * Normally on a zoned device we're only doing COW writes, but |