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zvol_os: suppress compiler warning for zvol_open_timeout_ms
When HAVE_BLKDEV_GET_ERESTARTSYS is defined, compiler will complain "defined but not used" warning for zvol_open_timeout_ms. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ping Huang <huangping@smartx.com> Closes #13270
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@ -46,7 +46,10 @@ static unsigned int zvol_request_sync = 0;
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static unsigned int zvol_prefetch_bytes = (128 * 1024);
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static unsigned long zvol_max_discard_blocks = 16384;
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static unsigned int zvol_threads = 32;
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#ifndef HAVE_BLKDEV_GET_ERESTARTSYS
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static const unsigned int zvol_open_timeout_ms = 1000;
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#endif
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struct zvol_state_os {
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struct gendisk *zvo_disk; /* generic disk */
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