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Fix gcc self-comparison warning

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As of gcc 6.1.1 20160621 (Red Hat 6.1.1-3) a self-comparison is
detected by gcc in metaslab_alloc().  Resolve the warning by passing
a physical size of 0 to BP_SET_BIRTH() as it done by other callers.

  module/zfs/metaslab.c: In function ‘metaslab_alloc’:
  module/zfs/metaslab.c:2575:184: error: self-comparison always evaluates
      to true [-Werror=tautological-compare]

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
Issue #4907
This commit is contained in:
Brian Behlendorf 2016-07-29 17:10:11 -07:00
parent 5b1bc1a1d8
commit efe7978d89
1 changed files with 1 additions and 1 deletions
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2
module/zfs/metaslab.c
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@ -2572,7 +2572,7 @@ metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize, blkptr_t *bp,
spa_config_exit(spa, SCL_ALLOC, FTAG);
BP_SET_BIRTH(bp, txg, txg);
BP_SET_BIRTH(bp, txg, 0);
return (0);
}