Date: Sun, 6 Jun 2010 21:49:36 GMT From: Efstratios Karatzas <gpf@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 179270 for review Message-ID: <201006062149.o56LnaDH057825@repoman.freebsd.org>
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http://p4web.freebsd.org/@@179270?ac=10 Change 179270 by gpf@gpf_desktop on 2010/06/06 21:48:40 Current nfs server: Actually needed to VFS_LOCK_GIANT() before I vrele() every AUDIT_ vnode pointer at the end of each RPC - fixed Tested with an exported ntfs partition and everything seems fine (my ntfs partition proved useful for a change, huzzah) Concerning mp-unsafe filesystems: the last thing I need to do is take a look and play with vn_fullpath_nocache() a little bit so it doesn't kernelpanic at the first vref() or something. Affected files ... .. //depot/projects/soc2010/gpf_audit/freebsd/src/sys/nfsserver/nfs_serv.c#15 edit Differences ... ==== //depot/projects/soc2010/gpf_audit/freebsd/src/sys/nfsserver/nfs_serv.c#15 (text+ko) ==== @@ -368,7 +368,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -436,7 +438,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -609,7 +613,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -807,7 +813,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return (error); @@ -929,7 +937,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -1195,7 +1205,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -1430,7 +1442,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -1751,10 +1765,16 @@ */ if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, AUDIT_dvp, nd.ni_cnd.cn_pnbuf, fhp, 1); - if (AUDIT_dvp != NULL) + if (AUDIT_dvp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_dvp->v_mount); vrele(AUDIT_dvp); - if (AUDIT_vp != NULL) - vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); + } + if (AUDIT_vp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); + vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); + } return (error); } @@ -1967,10 +1987,16 @@ */ if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, AUDIT_dvp, nd.ni_cnd.cn_pnbuf, fhp, 1); - if (AUDIT_dvp != NULL) + if (AUDIT_dvp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_dvp->v_mount); vrele(AUDIT_dvp); - if (AUDIT_vp != NULL) + VFS_UNLOCK_GIANT(vfslocked); + } + if (AUDIT_vp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); + } return (0); nfsmout: if (nd.ni_dvp) { @@ -1996,10 +2022,16 @@ */ if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, AUDIT_dvp, nd.ni_cnd.cn_pnbuf, fhp, 1); - if (AUDIT_dvp != NULL) + if (AUDIT_dvp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_dvp->v_mount); vrele(AUDIT_dvp); - if (AUDIT_vp != NULL) + VFS_UNLOCK_GIANT(vfslocked); + } + if (AUDIT_vp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); + } return (error); } @@ -2126,7 +2158,9 @@ if (AUDIT_dvp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(NULL, AUDIT_dvp, nd.ni_cnd.cn_pnbuf, NULL, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_dvp->v_mount); vrele(AUDIT_dvp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -2387,11 +2421,17 @@ if (AUDITING_TD(curthread)) { nfsrv_auditpath(NULL, AUDIT_fromdvp, fromnd.ni_cnd.cn_pnbuf, NULL, 1); nfsrv_auditpath(NULL, AUDIT_todvp, tond.ni_cnd.cn_pnbuf, NULL, 2); + } + if (AUDIT_fromdvp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_fromdvp->v_mount); + vrele(AUDIT_fromdvp); + VFS_UNLOCK_GIANT(vfslocked); } - if (AUDIT_fromdvp != NULL) - vrele(AUDIT_fromdvp); - if (AUDIT_todvp != NULL) + if (AUDIT_todvp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_todvp->v_mount); vrele(AUDIT_todvp); + VFS_UNLOCK_GIANT(vfslocked); + } return (error); } @@ -2562,11 +2602,17 @@ if (AUDITING_TD(curthread)) { nfsrv_auditpath(NULL, AUDIT_dvp, nd.ni_cnd.cn_pnbuf, NULL, 1); nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 2); + } + if (AUDIT_dvp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_dvp->v_mount); + vrele(AUDIT_dvp); + VFS_UNLOCK_GIANT(vfslocked); } - if (AUDIT_dvp != NULL) - vrele(AUDIT_dvp); - if (AUDIT_vp != NULL) + if (AUDIT_vp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); + } return(error); } @@ -2775,10 +2821,16 @@ */ if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, AUDIT_dvp, nd.ni_cnd.cn_pnbuf, fhp, 1); - if (AUDIT_dvp != NULL) + if (AUDIT_dvp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_dvp->v_mount); vrele(AUDIT_dvp); - if (AUDIT_vp != NULL) + VFS_UNLOCK_GIANT(vfslocked); + } + if (AUDIT_vp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); + } return (error); } @@ -2962,10 +3014,16 @@ */ if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, AUDIT_dvp, nd.ni_cnd.cn_pnbuf, fhp, 1); - if (AUDIT_dvp != NULL) + if (AUDIT_dvp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_dvp->v_mount); vrele(AUDIT_dvp); - if (AUDIT_vp != NULL) + VFS_UNLOCK_GIANT(vfslocked); + } + if (AUDIT_vp != NULL) { + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); + } return (error); } @@ -3108,7 +3166,9 @@ if (AUDIT_dvp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(NULL, AUDIT_dvp, nd.ni_cnd.cn_pnbuf, NULL, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_dvp->v_mount); vrele(AUDIT_dvp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -3456,7 +3516,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -3821,7 +3883,9 @@ if (AUDIT_vp) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -3998,7 +4062,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -4106,7 +4172,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -4196,7 +4264,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error); @@ -4284,7 +4354,9 @@ if (AUDIT_vp != NULL) { if (AUDITING_TD(curthread)) nfsrv_auditpath(AUDIT_vp, NULL, NULL, fhp, 1); + vfslocked = VFS_LOCK_GIANT(AUDIT_vp->v_mount); vrele(AUDIT_vp); + VFS_UNLOCK_GIANT(vfslocked); } return(error);
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