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| author | rdivacky <rdivacky@FreeBSD.org> | 2008-04-29 21:40:11 +0000 |
|---|---|---|
| committer | rdivacky <rdivacky@FreeBSD.org> | 2008-04-29 21:40:11 +0000 |
| commit | 2db61d77e97b931741d0f7a95ff095773a62cf69 (patch) | |
| tree | 1ab1d5746ab13c99b08b4c5ca4f737836f9d8f76 /sys | |
| parent | 8bf6f34fe9c6c60622d316bf23d8e06354f0f1ab (diff) | |
| download | FreeBSD-src-2db61d77e97b931741d0f7a95ff095773a62cf69.zip FreeBSD-src-2db61d77e97b931741d0f7a95ff095773a62cf69.tar.gz | |
Lock filedesc exclusively when modifying fd_[cr]dir.
This is probably harmless but it's better to lock it
correctly.
Approved by: kib (mentor)
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/vfs_mount.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c index 34166e7..7ba181d 100644 --- a/sys/kern/vfs_mount.c +++ b/sys/kern/vfs_mount.c @@ -1472,7 +1472,7 @@ set_rootvnode(struct thread *td) panic("Cannot find root vnode"); p = td->td_proc; - FILEDESC_SLOCK(p->p_fd); + FILEDESC_XLOCK(p->p_fd); if (p->p_fd->fd_cdir != NULL) vrele(p->p_fd->fd_cdir); @@ -1484,7 +1484,7 @@ set_rootvnode(struct thread *td) p->p_fd->fd_rdir = rootvnode; VREF(rootvnode); - FILEDESC_SUNLOCK(p->p_fd); + FILEDESC_XUNLOCK(p->p_fd); VOP_UNLOCK(rootvnode, 0); |
