Commit f392a938 authored by Chris Mason's avatar Chris Mason
Browse files

Properly align the hole size in btrfs_setattr 



Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent b1632b10

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;

	}