On Tue, Feb 25, 2014 at 08:08:25PM +0100, Dongsu Park wrote: > Introduce a new option -c (or --collapse-range) to support a new flag > FALLOC_FL_COLLAPSE_RANGE for fallocate(2). It will nullify a particular > range [offset, offset+len] by shifting extents beyond the range to the > beginning of the hole. > > To test that, it's necessary to apply kernel patches in the patchset > "fs: Introduce new flag (FALLOC_FL_COLLAPSE_RANGE) for fallocate" [1], > as well as "[PATCH v6] ext4: Add support FALLOC_FL_COLLAPSE_RANGE for > fallocate". [2] > > As discussed in the thread "[PATCH RESEND 3/10] ext4: Add support > FALLOC_FL_COLLAPSE_RANGE for fallocate", [3] this patch to util-linux > will be useful for testing collapse-range inside xfstests. FYI, we've already got support in xfs_io for collapse-range tests inside xfstests. http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xfs/cmds/xfsprogs.git;a=commit;h=ca692f162d36c871c9c1b6169136b2c70503f2d8 There are already several tests that use it. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
