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ext4: improve writepage credit estimate for files with indirect blocks

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ext4_ind_trans_blocks() wrongly used 'chunk' argument to decide whether
blocks mapped are logically contiguous. That is wrong since the argument
informs whether the blocks are physically contiguous. As the blocks
mapped are always logically contiguous and that's all
ext4_ind_trans_blocks() cares about, just remove the 'chunk' argument.

Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Jan Kara
2013-06-04 12:56:55 -04:00
committed by Theodore Ts'o
parent f2d50a65c9
commit fa55a0ed03
3 changed files with 11 additions and 20 deletions
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2
fs/ext4/inode.c
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@@ -4653,7 +4653,7 @@ int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
static int ext4_index_trans_blocks(struct inode *inode, int nrblocks, int chunk)
{
if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
return ext4_ind_trans_blocks(inode, nrblocks, chunk);
return ext4_ind_trans_blocks(inode, nrblocks);
return ext4_ext_index_trans_blocks(inode, nrblocks, chunk);
}