Serapheim Dimitropoulos 1c4b0fc745 Race condition between spa async threads and export ... In the past we've seen multiple race conditions that have to do with open-context threads async threads and concurrent calls to spa_export()/spa_destroy() (including the one referenced in issue #9015). This patch ensures that only one thread can execute the main body of spa_export_common() at a time, with subsequent threads returning with a new error code created just for this situation, eliminating this way any race condition bugs introduced by concurrent calls to this function. Reviewed by: Matt Ahrens <matt@delphix.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com> Closes #9015 Closes #9044		2019-09-25 11:27:50 -07:00
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.gitignore	Add .gitignore files to exclude build products	2010-01-08 11:35:17 -08:00
Makefile.am	Add libzutil for libzfs or libzpool consumers	2018-11-05 11:22:33 -08:00
ztest.c	Race condition between spa async threads and export	2019-09-25 11:27:50 -07:00