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(parent: 2318aa2) | patch
dlm: avoid scanning unchanged toss lists
authorDavid Teigland <teigland@redhat.com>
Mon, 7 Jan 2013 17:03:42 +0000 (11:03 -0600)
committerDavid Teigland <teigland@redhat.com>
Mon, 7 Jan 2013 18:02:49 +0000 (12:02 -0600)
commitf11722834605a155022a8098ad7d8adacf44b22f
tree9a2004fa6c4a925971c338db5af8f643a990f2d8tree | snapshot (tar.gz zip)
parent2318aa272072f6906de8e00a332da1485506b3c5commit | diff
dlm: avoid scanning unchanged toss lists

Keep track of whether a toss list contains any
shrinkable rsbs.  If not, dlm_scand can avoid
scanning the list for rsbs to shrink.  Unnecessary
scanning can otherwise waste a lot of time because
the toss lists can contain a large number of rsbs
that are non-shrinkable (directory records).

Signed-off-by: David Teigland <teigland@redhat.com>
fs/dlm/dlm_internal.h diff | blob | blame | history
fs/dlm/lock.c diff | blob | blame | history