Date: Thu, 24 Jul 2014 11:17:26 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r269057 - stable/9/sys/kern Message-ID: <201407241117.s6OBHQLV077237@svn.freebsd.org>
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Author: kib Date: Thu Jul 24 11:17:26 2014 New Revision: 269057 URL: http://svnweb.freebsd.org/changeset/base/269057 Log: MFC r268384: When the lock was stolen from us, retry the whole lock sequence in kernel, instead of returning EINTR. Modified: stable/9/sys/kern/kern_lockf.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/kern/kern_lockf.c ============================================================================== --- stable/9/sys/kern/kern_lockf.c Thu Jul 24 10:45:52 2014 (r269056) +++ stable/9/sys/kern/kern_lockf.c Thu Jul 24 11:17:26 2014 (r269057) @@ -469,6 +469,9 @@ lf_advlockasync(struct vop_advlockasync_ return (EOVERFLOW); end = start + oadd; } + +retry_setlock: + /* * Avoid the common case of unlocking when inode has no locks. */ @@ -744,6 +747,11 @@ lf_advlockasync(struct vop_advlockasync_ sx_destroy(&freestate->ls_lock); free(freestate, M_LOCKF); } + + if (error == EDOOFUS) { + KASSERT(ap->a_op == F_SETLK, ("EDOOFUS")); + goto retry_setlock; + } return (error); } @@ -1459,7 +1467,7 @@ lf_setlock(struct lockf *state, struct l lock->lf_refs++; error = sx_sleep(lock, &state->ls_lock, priority, lockstr, 0); if (lf_free_lock(lock)) { - error = EINTR; + error = EDOOFUS; goto out; }
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