GFS2: Speed up starting point selection for block allocation

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When setting the starting point for block allocation, there were calls
to both gfs2_rbm_to_block() and gfs2_rbm_from_block() in the common case
of there being an active reservation. The gfs2_rbm_from_block() function
can be quite slow, and since the two conversions were effectively a
no-op, it makes sense to avoid them entirely in this case.

There is no functional change here, but the code should be a bit more
efficient after this patch.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

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This commit is contained in:

Steven Whitehouse 2013-10-02 14:42:45 +01:00

parent 7b9cff4671

commit 9e07f2cb3d

1 changed files with 31 additions and 10 deletions

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fs/gfs2/rgrp.c

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