Author: mjg Date: Wed Oct 15 05:17:36 2014 New Revision: 273118 URL: https://svnweb.freebsd.org/changeset/base/273118
Log: Don't take devmtx unnecessarily in vn_isdisk. MFC after: 1 week Modified: head/sys/kern/vfs_subr.c Modified: head/sys/kern/vfs_subr.c ============================================================================== --- head/sys/kern/vfs_subr.c Wed Oct 15 04:34:07 2014 (r273117) +++ head/sys/kern/vfs_subr.c Wed Oct 15 05:17:36 2014 (r273118) @@ -3775,17 +3775,20 @@ vn_isdisk(struct vnode *vp, int *errp) { int error; + if (vp->v_type != VCHR) { + error = ENOTBLK; + goto out; + } error = 0; dev_lock(); - if (vp->v_type != VCHR) - error = ENOTBLK; - else if (vp->v_rdev == NULL) + if (vp->v_rdev == NULL) error = ENXIO; else if (vp->v_rdev->si_devsw == NULL) error = ENXIO; else if (!(vp->v_rdev->si_devsw->d_flags & D_DISK)) error = ENOTBLK; dev_unlock(); +out: if (errp != NULL) *errp = error; return (error == 0); _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"