Date: Sun, 25 Jan 2015 14:25:45 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r277699 - stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <201501251425.t0PEPjV0097279@svn.freebsd.org>
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Author: mav Date: Sun Jan 25 14:25:44 2015 New Revision: 277699 URL: https://svnweb.freebsd.org/changeset/base/277699 Log: MFC r276913: Use new optimized dmu_read_uio_dbuf() for ZVOLs in device mode. This slightly reduces overhead by avoiding dnode_hold()/dnode_rele() calls. Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c ============================================================================== --- stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Sun Jan 25 13:15:12 2015 (r277698) +++ stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Sun Jan 25 14:25:44 2015 (r277699) @@ -1819,7 +1819,7 @@ zvol_read(struct cdev *dev, struct uio * if (bytes > volsize - uio->uio_loffset) bytes = volsize - uio->uio_loffset; - error = dmu_read_uio(zv->zv_objset, ZVOL_OBJ, uio, bytes); + error = dmu_read_uio_dbuf(zv->zv_dbuf, uio, bytes); if (error) { /* convert checksum errors into IO errors */ if (error == ECKSUM)
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