man: Revise internal man page generation process.

For each section 8 man page, a .8_gen file is created from one of:
  .8_main            - Old-style man page - content used directly
  .8_des and .8_end  - Description and end section of a generated page
  .8_pregen	     - Pre-generated page used if the generator fails

Other man sections are not generated and use the suffix .5_main or .7_main.

Developers should use 'make generate' to regenerate the .8_pregen files.

1 files changed, 16 insertions, 0 deletions

diff --git a/man/pvmove.8_des b/man/pvmove.8_des
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+pvmove moves the allocated physical extents (PEs) on a source PV to one or
+more destination PVs.  You can optionally specify a source LV in which
+case only extents used by that LV will be moved to free (or specified)
+extents on the destination PV. If no destination PV is specified, the
+normal allocation rules for the VG are used.
+
+If pvmove is interrupted for any reason (e.g. the machine crashes) then
+run pvmove again without any PV arguments to restart any operations that
+were in progress from the last checkpoint. Alternatively, use the abort
+option at any time to abort the operation. The resulting location of LVs
+after an abort depends on whether the atomic option was used.
+
+More than one pvmove can run concurrently if they are moving data from
+different source PVs, but additional pvmoves will ignore any LVs already
+in the process of being changed, so some data might not get moved.
+