On Jul 22, 2008 17:51 -0700, Mingming Cao wrote:
> + * Calulate the total number of credits to reserve to fit
> + * the modification of @num pages into a single transaction
> + */
> +int ext4_writepages_trans_blocks(struct inode *inode, int num)
> +{
> + int bpp = ext4_journal_blocks_per_page(inode);
> + int nrblocks = num * bpp;
> +
> + if (!EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)
> + return ext4_writepages_trans_blocks_old(inode, nrblocks);
This should be "if (!(EXT4_I(inode)->i_flags & EXT_EXTENTS_FL))", and
we should probably make it "unlikely()" since we expect most new files
in an ext4 filesystem are extent mapped.
Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.
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