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Date:	Thu, 05 Jun 2008 12:24:55 -0600
From:	Andreas Dilger <>
To:	Mingming Cao <>
Cc:	"Aneesh Kumar K.V" <>,
	Theodore Tso <>,,
Subject: Re: [PATCH -v2] ext4: Use inode preallocation with -o noextents

On Jun 05, 2008  07:55 -0700, Mingming Cao wrote:
> >  /**
> > - * ext4_new_blocks_old() -- core block(s) allocation function
> > + * ext4_orlov_new_blocks() -- core block(s) allocation function
> what is orlov means? this is core function for non extent based without
> mballoc block allocation, right? 

Orlov is the name of the INODE allocator, not the block allocator.  I'm
not sure there is a name for the block allocator except "old" or "bitmap".
In the future I suspect we won't want to keep this version at all, using
the mballoc allocator even for block-mapped files, but it is useful for
now for performance comparisons.

Cheers, Andreas
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.

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