Author: avg Date: Fri May 26 11:49:42 2017 New Revision: 318935 URL: https://svnweb.freebsd.org/changeset/base/318935
Log: MFV r318934: 8070 Add some ZFS comments illumos/illumos-gate@40713f2b249d289022c715107b3951055a63aef0 https://github.com/illumos/illumos-gate/commit/40713f2b249d289022c715107b3951055a63aef0 https://www.illumos.org/issues/8070 Add some ZFS comments left by various developers at different times Reviewed by: Yuri Pankov <yuri.pan...@gmail.com> Reviewed by: Matthew Ahrens <mahr...@delphix.com> Approved by: Robert Mustacchi <r...@joyent.com> Author: Alan Somers <asom...@gmail.com> MFC after: 1 week Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Directory Properties: head/sys/cddl/contrib/opensolaris/ (props changed) Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Fri May 26 11:48:29 2017 (r318934) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Fri May 26 11:49:42 2017 (r318935) @@ -1219,6 +1219,11 @@ dbuf_unoverride(dbuf_dirty_record_t *dr) uint64_t txg = dr->dr_txg; ASSERT(MUTEX_HELD(&db->db_mtx)); + /* + * This assert is valid because dmu_sync() expects to be called by + * a zilog's get_data while holding a range lock. This call only + * comes from dbuf_dirty() callers who must also hold a range lock. + */ ASSERT(dr->dt.dl.dr_override_state != DR_IN_DMU_SYNC); ASSERT(db->db_level == 0); Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Fri May 26 11:48:29 2017 (r318934) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Fri May 26 11:49:42 2017 (r318935) @@ -807,7 +807,7 @@ dsl_scan_visitbp(blkptr_t *bp, const zbo return; /* - * If dsl_scan_ddt() has aready visited this block, it will have + * If dsl_scan_ddt() has already visited this block, it will have * already done any translations or scrubbing, so don't call the * callback again. */ @@ -1474,6 +1474,7 @@ dsl_scan_active(dsl_scan_t *scn) return (used != 0); } +/* Called whenever a txg syncs. */ void dsl_scan_sync(dsl_pool_t *dp, dmu_tx_t *tx) { @@ -1892,6 +1893,7 @@ dsl_scan_scrub_cb(dsl_pool_t *dp, return (0); } +/* Called by the ZFS_IOC_POOL_SCAN ioctl to start a scrub or resilver */ int dsl_scan(dsl_pool_t *dp, pool_scan_func_t func) { _______________________________________________ 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"
