Date: Sat, 4 Oct 2014 07:39:00 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r272499 - vendor-sys/illumos/dist/uts/common/fs/zfs Message-ID: <201410040739.s947d0Em084797@svn.freebsd.org>
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Author: delphij Date: Sat Oct 4 07:38:59 2014 New Revision: 272499 URL: https://svnweb.freebsd.org/changeset/base/272499 Log: 5174 add sdt probe for blocked read in dbuf_read() Reviewed by: Basil Crow <basil.crow@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Steven Hartland <killing@multiplay.co.uk> Reviewed by: Richard Elling <richard.elling@gmail.com> Reviewed by: Boris Protopopov <bprotopopov@hotmail.com> Reviewed by: Steven Hartland <killing@multiplay.co.uk> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Robert Mustacchi <rm@joyent.com> Author: Adam H. Leventhal <ahl@delphix.com> illumos/illumos-gate@f6164ad638e7346c4ae4ba393760a897cf6eb744 Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/dbuf.c Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/dbuf.c ============================================================================== --- vendor-sys/illumos/dist/uts/common/fs/zfs/dbuf.c Sat Oct 4 07:37:17 2014 (r272498) +++ vendor-sys/illumos/dist/uts/common/fs/zfs/dbuf.c Sat Oct 4 07:38:59 2014 (r272499) @@ -671,6 +671,8 @@ dbuf_read(dmu_buf_impl_t *db, zio_t *zio db->db_state == DB_FILL) { ASSERT(db->db_state == DB_READ || (flags & DB_RF_HAVESTRUCT) == 0); + DTRACE_PROBE2(blocked__read, dmu_buf_impl_t *, + db, zio_t *, zio); cv_wait(&db->db_changed, &db->db_mtx); } if (db->db_state == DB_UNCACHED)
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