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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