Date: Fri, 21 Mar 2014 01:34:20 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r263460 - head/sys/kern Message-ID: <201403210134.s2L1YKWT033914@svn.freebsd.org>
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Author: mjg Date: Fri Mar 21 01:34:19 2014 New Revision: 263460 URL: http://svnweb.freebsd.org/changeset/base/263460 Log: Take filedesc lock only for reading when allocating new fdtable. Code populating the table does this already. MFC after: 1 week Modified: head/sys/kern/kern_descrip.c Modified: head/sys/kern/kern_descrip.c ============================================================================== --- head/sys/kern/kern_descrip.c Fri Mar 21 01:32:25 2014 (r263459) +++ head/sys/kern/kern_descrip.c Fri Mar 21 01:34:19 2014 (r263460) @@ -1808,7 +1808,7 @@ fdinit(struct filedesc *fdp) newfdp = malloc(sizeof *newfdp, M_FILEDESC, M_WAITOK | M_ZERO); FILEDESC_LOCK_INIT(&newfdp->fd_fd); if (fdp != NULL) { - FILEDESC_XLOCK(fdp); + FILEDESC_SLOCK(fdp); newfdp->fd_fd.fd_cdir = fdp->fd_cdir; if (newfdp->fd_fd.fd_cdir) VREF(newfdp->fd_fd.fd_cdir); @@ -1818,7 +1818,7 @@ fdinit(struct filedesc *fdp) newfdp->fd_fd.fd_jdir = fdp->fd_jdir; if (newfdp->fd_fd.fd_jdir) VREF(newfdp->fd_fd.fd_jdir); - FILEDESC_XUNLOCK(fdp); + FILEDESC_SUNLOCK(fdp); } /* Create the file descriptor table. */
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