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Commit fadc0d8b authored by David Sterba's avatar David Sterba Committed by Chris Mason
Browse files

btrfs: fix stat blocks accounting 



Round inode bytes and delalloc bytes up to real blocksize before
converting to sector size. Otherwise eg. files smaller than 512
are reported with zero blocks due to incorrect rounding.

Signed-off-by: default avatarDavid Sterba <dsterba@suse.cz>
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent 52621cb6

fs/btrfs/inode.c

+4 −2
Original line number Diff line number Diff line
@@ -6794,11 +6794,13 @@ static int btrfs_getattr(struct vfsmount *mnt, 
			 struct dentry *dentry, struct kstat *stat)

{

	struct inode *inode = dentry->d_inode;

	u32 blocksize = inode->i_sb->s_blocksize;



	generic_fillattr(inode, stat);

	stat->dev = BTRFS_I(inode)->root->anon_dev;

	stat->blksize = PAGE_CACHE_SIZE;

	stat->blocks = (inode_get_bytes(inode) +

			BTRFS_I(inode)->delalloc_bytes) >> 9;

	stat->blocks = (ALIGN(inode_get_bytes(inode), blocksize) +

		ALIGN(BTRFS_I(inode)->delalloc_bytes, blocksize)) >> 9;

	return 0;

}