Properly align the hole size in btrfs_setattr (f392a938) · Commits · 戴 / test

fs/btrfs/inode.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -1001,7 +1001,7 @@ static int btrfs_setattr(struct dentry dentry, struct iattr attr)

		u64 mask = root->sectorsize - 1;
		u64 pos = (inode->i_size + mask) & ~mask;
		u64 block_end = attr->ia_size \| mask;
		u64 block_end = (attr->ia_size + mask) & ~mask;
		u64 hole_start;
		u64 hole_size;
		u64 alloc_hint = 0;
		@@ -1022,7 +1022,7 @@ static int btrfs_setattr(struct dentry dentry, struct iattr attr)

		btrfs_truncate_page(inode->i_mapping, inode->i_size);

		lock_extent(io_tree, pos, block_end, GFP_NOFS);
		lock_extent(io_tree, pos, block_end - 1, GFP_NOFS);
		hole_size = block_end - hole_start;

		mutex_lock(&root->fs_info->fs_mutex);
		@@ -1043,7 +1043,7 @@ static int btrfs_setattr(struct dentry dentry, struct iattr attr)
		}
		btrfs_end_transaction(trans, root);
		mutex_unlock(&root->fs_info->fs_mutex);
		unlock_extent(io_tree, pos, block_end, GFP_NOFS);
		unlock_extent(io_tree, pos, block_end - 1, GFP_NOFS);
		if (err)
		return err;
		}