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ext4: let getattr report the right blocks in delalloc+bigalloc 

In delayed allocation, i_reserved_data_blocks now indicates
clusters, not blocks. So report it in the right number.

This can be easily exposed by the following command:
echo foo > blah; du -hc blah; sync; du -hc blah

Reported-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Tao Ma 2012-05-31 22:54:16 -04:00 committed by Theodore Ts'o
parent f3fc0210c0
commit 9660755100
1 changed files with 2 additions and 1 deletions
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3
fs/ext4/inode.c
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@ -4301,7 +4301,8 @@ int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
* will return the blocks that include the delayed allocation * will return the blocks that include the delayed allocation
* blocks for this file. * blocks for this file.
*/ */
delalloc_blocks = EXT4_I(inode)->i_reserved_data_blocks; delalloc_blocks = EXT4_C2B(EXT4_SB(inode->i_sb),
EXT4_I(inode)->i_reserved_data_blocks);
stat->blocks += (delalloc_blocks << inode->i_sb->s_blocksize_bits)>>9; stat->blocks += (delalloc_blocks << inode->i_sb->s_blocksize_bits)>>9;
return 0; return 0;