Author: avg Date: Wed May 24 22:27:48 2017 New Revision: 318830 URL: https://svnweb.freebsd.org/changeset/base/318830
Log: MFC r316921: 8027 tighten up dsl_pool_dirty_delta illumos/illumos-gate@313ae1e182df6e6a04b56c4b73ded33e11b75666 https://github.com/illumos/illumos-gate/commit/313ae1e182df6e6a04b56c4b73ded33e11b75666 https://www.illumos.org/issues/8027 dsl_pool_dirty_delta() should not wake up waiters when dp->dp_dirty_total == zfs_dirty_data_max, because they wait for dp_dirty_total to fall strictly below the threshold. It's probably very rare for that condition to occur, but it's better to have more accurate code. Reviewed by: Matt Ahrens <mahr...@delphix.com> Reviewed by: Serapheim Dimitropoulos <seraph...@delphix.com> Reviewed by: Paul Dagnelie <p...@delphix.com> Approved by: Dan McDonald <dan...@omniti.com> Author: Andriy Gapon <a...@freebsd.org> MFC after: 1 week Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c Directory Properties: head/sys/cddl/contrib/opensolaris/ (props changed) Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c Wed May 24 22:25:26 2017 (r318829) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c Wed May 24 22:27:48 2017 (r318830) @@ -559,7 +559,7 @@ dsl_pool_dirty_delta(dsl_pool_t *dp, int * Note: we signal even when increasing dp_dirty_total. * This ensures forward progress -- each thread wakes the next waiter. */ - if (dp->dp_dirty_total <= zfs_dirty_data_max) + if (dp->dp_dirty_total < zfs_dirty_data_max) cv_signal(&dp->dp_spaceavail_cv); } _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
