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Date: Mon, 13 Aug 2012 10:39:41 -0400 From: Theodore Ts'o <tytso@....edu> To: Andreas Dilger <aedilger@...il.com> Cc: Jeff Moyer <jmoyer@...hat.com>, Ext4 Developers List <linux-ext4@...r.kernel.org> Subject: Re: An idea for supporting large directories and readdir+stat workloads On Mon, Aug 13, 2012 at 10:36:07AM -0400, Theodore Ts'o wrote: > Field Size > > ino 4 Silly me, we don't need actually need to store the inode a second time, since that's already in the struct ext4_dir_entry. > dev 4 ... and we only need to store the device if this is a block or character device, so we could actually use the i_size field below to store the dev_t for devices inodes. So this would shrink the size of the "compact inode" that would be stored in the directory entry down from 62 bytes to 58 bytes. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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