tree 962f134a2c7f771cdafdae4ff6caa9e36693dce5
parent c58efdb442bb49dea1d148f207560c41918c1bf4
author Christoph Hellwig <hch@infradead.org> 1294405324 +0000
committer Alex Elder <aelder@sgi.com> 1294799309 -0600

xfs: add FITRIM support

Allow manual discards from userspace using the FITRIM ioctl.  This is not
intended to be run during normal workloads, as the freepsace btree walks
can cause large performance degradation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>