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Olaf Faaland 0801e4e5c9 Initialize mmp_last_write when the mmp thread starts (#10912 )

A great deal of time may go by between when mmp_init() is called and
the MMP thread starts, particularly if there are bad devices, because
there is I/O checking configs etc.  If this time is too long,

    (gethrtime() - mmp_last_write) > mmp_fail_ns

at the time the MMP thread starts.  If MMP is configured to suspend
the pool, the pool will be suspended immediately.

This can be seen in issue #10838

The value of mmp_last_write doesn't matter before the mmp thread
starts.  To give the MMP thread time to issue and land MMP writes,
initialize mmp_last_write when the MMP thread starts.

Reviewed-by: Giuseppe Di Natale <guss80@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Closes #10873

2020-09-16 00:16:47 +00:00

avl

Fix typos in module/

2020-01-22 13:48:59 -08:00

icp

Replace sprintf()->snprintf() and strcpy()->strlcpy()

2020-09-15 21:16:58 +00:00

lua

Switch off -Wmissing-prototypes for libgcc math functions

2020-09-15 21:21:05 +00:00

nvpair

cppcheck: (warning) Possible null pointer dereference: nvh