On Thu, Nov 18, 2010 at 05:43:06AM -0500, Theodore Tso wrote: > Why is it at all important that mlock() force block allocation for sparse blocks? It's not at all specified in the mlock() API definition that it does that. > > Are there really programs that assume that mlock() == fallocate()?!? If there are programs that do they can't predate linux 2.6.15, and only work on btrfs/ext4/xfs/etc, but not ext2/ext3/reiserfs. Seems rather unlikely to me. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>