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Index: sys/compat/linprocfs/linprocfs.c
===================================================================
--- sys/compat/linprocfs/linprocfs.c
+++ sys/compat/linprocfs/linprocfs.c
@@ -340,7 +340,7 @@
error = namei(&nd);
lep = linux_emul_path;
if (error == 0) {
- if (vn_fullpath(td, nd.ni_vp, &dlep, &flep) == 0)
+ if (vn_fullpath(td, nd.ni_vp, 0, &dlep, &flep) == 0)
lep = dlep;
vrele(nd.ni_vp);
}
@@ -884,7 +884,7 @@
char *fullpath = "unknown";
char *freepath = NULL;
- vn_fullpath(td, p->p_fd->fd_cdir, &fullpath, &freepath);
+ vn_fullpath(td, p->p_fd->fd_cdir, 0, &fullpath, &freepath);
sbuf_printf(sb, "%s", fullpath);
if (freepath)
free(freepath, M_TEMP);
@@ -902,7 +902,7 @@
char *freepath = NULL;
rvp = jailed(p->p_ucred) ? p->p_fd->fd_jdir : p->p_fd->fd_rdir;
- vn_fullpath(td, rvp, &fullpath, &freepath);
+ vn_fullpath(td, rvp, 0, &fullpath, &freepath);
sbuf_printf(sb, "%s", fullpath);
if (freepath)
free(freepath, M_TEMP);
@@ -1053,7 +1053,7 @@
shadow_count = obj->shadow_count;
VM_OBJECT_RUNLOCK(obj);
if (vp) {
- vn_fullpath(td, vp, &name, &freename);
+ vn_fullpath(td, vp, 0, &name, &freename);
vn_lock(vp, LK_SHARED | LK_RETRY);
VOP_GETATTR(vp, &vat, td->td_ucred);
ino = vat.va_fileid;
Index: sys/dev/hwpmc/hwpmc_mod.c
===================================================================
--- sys/dev/hwpmc/hwpmc_mod.c
+++ sys/dev/hwpmc/hwpmc_mod.c
@@ -728,7 +728,7 @@
*fullpath = "unknown";
*freepath = NULL;
- vn_fullpath(curthread, v, fullpath, freepath);
+ vn_fullpath(curthread, v, 0, fullpath, freepath);
}
/*
Index: sys/fs/procfs/procfs.c
===================================================================
--- sys/fs/procfs/procfs.c
+++ sys/fs/procfs/procfs.c
@@ -77,7 +77,7 @@
textvp = p->p_textvp;
vhold(textvp);
PROC_UNLOCK(p);
- error = vn_fullpath(td, textvp, &fullpath, &freepath);
+ error = vn_fullpath(td, textvp, 0, &fullpath, &freepath);
vdrop(textvp);
if (error == 0)
sbuf_printf(sb, "%s", fullpath);
Index: sys/fs/procfs/procfs_map.c
===================================================================
--- sys/fs/procfs/procfs_map.c
+++ sys/fs/procfs/procfs_map.c
@@ -188,7 +188,7 @@
shadow_count = obj->shadow_count;
VM_OBJECT_RUNLOCK(obj);
if (vp != NULL) {
- vn_fullpath(td, vp, &fullpath, &freepath);
+ vn_fullpath(td, vp, 0, &fullpath, &freepath);
vrele(vp);
}
} else {
Index: sys/kern/imgact_elf.c
===================================================================
--- sys/kern/imgact_elf.c
+++ sys/kern/imgact_elf.c
@@ -1870,7 +1870,7 @@
sbuf_set_drain(sb, sbuf_drain_count, &size);
sbuf_bcat(sb, &structsize, sizeof(structsize));
PROC_LOCK(p);
- kern_proc_filedesc_out(p, sb, -1);
+ kern_proc_filedesc_out(p, sb, -1, LK_NOWAIT);
sbuf_finish(sb);
sbuf_delete(sb);
*sizep = size;
@@ -1878,7 +1878,7 @@
structsize = sizeof(struct kinfo_file);
sbuf_bcat(sb, &structsize, sizeof(structsize));
PROC_LOCK(p);
- kern_proc_filedesc_out(p, sb, -1);
+ kern_proc_filedesc_out(p, sb, -1, LK_NOWAIT);
}
}
Index: sys/kern/kern_descrip.c
===================================================================
--- sys/kern/kern_descrip.c
+++ sys/kern/kern_descrip.c
@@ -3090,7 +3090,7 @@
static void
export_file_to_kinfo(struct file *fp, int fd, cap_rights_t *rightsp,
- struct kinfo_file *kif, struct filedesc *fdp)
+ struct kinfo_file *kif, struct filedesc *fdp, int lkflags)
{
int error;
@@ -3111,7 +3111,7 @@
* This may drop the filedesc lock, so the 'fp' cannot be
* accessed after this call.
*/
- error = fo_fill_kinfo(fp, kif, fdp);
+ error = fo_fill_kinfo(fp, kif, fdp, lkflags);
if (error == 0)
kif->kf_status |= KF_ATTR_VALID;
pack_kinfo(kif);
@@ -3119,14 +3119,14 @@
static void
export_vnode_to_kinfo(struct vnode *vp, int fd, int fflags,
- struct kinfo_file *kif)
+ struct kinfo_file *kif, int lkflags)
{
int error;
bzero(kif, sizeof(*kif));
kif->kf_type = KF_TYPE_VNODE;
- error = vn_fill_kinfo_vnode(vp, kif);
+ error = vn_fill_kinfo_vnode(vp, kif, lkflags);
if (error == 0)
kif->kf_status |= KF_ATTR_VALID;
kif->kf_flags = xlate_fflags(fflags);
@@ -3164,13 +3164,13 @@
static int
export_file_to_sb(struct file *fp, int fd, cap_rights_t *rightsp,
- struct export_fd_buf *efbuf)
+ struct export_fd_buf *efbuf, int lkflags)
{
int error;
if (efbuf->remainder == 0)
return (0);
- export_file_to_kinfo(fp, fd, rightsp, &efbuf->kif, efbuf->fdp);
+ export_file_to_kinfo(fp, fd, rightsp, &efbuf->kif, efbuf->fdp, lkflags);
FILEDESC_SUNLOCK(efbuf->fdp);
error = export_kinfo_to_sb(efbuf);
FILEDESC_SLOCK(efbuf->fdp);
@@ -3179,7 +3179,7 @@
static int
export_vnode_to_sb(struct vnode *vp, int fd, int fflags,
- struct export_fd_buf *efbuf)
+ struct export_fd_buf *efbuf, int lkflags)
{
int error;
@@ -3187,7 +3187,7 @@
return (0);
if (efbuf->fdp != NULL)
FILEDESC_SUNLOCK(efbuf->fdp);
- export_vnode_to_kinfo(vp, fd, fflags, &efbuf->kif);
+ export_vnode_to_kinfo(vp, fd, fflags, &efbuf->kif, lkflags);
error = export_kinfo_to_sb(efbuf);
if (efbuf->fdp != NULL)
FILEDESC_SLOCK(efbuf->fdp);
@@ -3198,9 +3198,12 @@
* Store a process file descriptor information to sbuf.
*
* Takes a locked proc as argument, and returns with the proc unlocked.
+ *
+ * LK_NOWAIT may be passed in lkflags to avoid sleeping on vnode locks.
*/
int
-kern_proc_filedesc_out(struct proc *p, struct sbuf *sb, ssize_t maxlen)
+kern_proc_filedesc_out(struct proc *p, struct sbuf *sb, ssize_t maxlen,
+ int lkflags)
{
struct file *fp;
struct filedesc *fdp;
@@ -3234,12 +3237,13 @@
efbuf->remainder = maxlen;
if (tracevp != NULL)
export_vnode_to_sb(tracevp, KF_FD_TYPE_TRACE, FREAD | FWRITE,
- efbuf);
+ efbuf, lkflags);
if (textvp != NULL)
- export_vnode_to_sb(textvp, KF_FD_TYPE_TEXT, FREAD, efbuf);
+ export_vnode_to_sb(textvp, KF_FD_TYPE_TEXT, FREAD, efbuf,
+ lkflags);
if (cttyvp != NULL)
export_vnode_to_sb(cttyvp, KF_FD_TYPE_CTTY, FREAD | FWRITE,
- efbuf);
+ efbuf, lkflags);
error = 0;
if (fdp == NULL)
goto fail;
@@ -3248,17 +3252,20 @@
/* working directory */
if (fdp->fd_cdir != NULL) {
vref(fdp->fd_cdir);
- export_vnode_to_sb(fdp->fd_cdir, KF_FD_TYPE_CWD, FREAD, efbuf);
+ export_vnode_to_sb(fdp->fd_cdir, KF_FD_TYPE_CWD, FREAD, efbuf,
+ lkflags);
}
/* root directory */
if (fdp->fd_rdir != NULL) {
vref(fdp->fd_rdir);
- export_vnode_to_sb(fdp->fd_rdir, KF_FD_TYPE_ROOT, FREAD, efbuf);
+ export_vnode_to_sb(fdp->fd_rdir, KF_FD_TYPE_ROOT, FREAD, efbuf,
+ lkflags);
}
/* jail directory */
if (fdp->fd_jdir != NULL) {
vref(fdp->fd_jdir);
- export_vnode_to_sb(fdp->fd_jdir, KF_FD_TYPE_JAIL, FREAD, efbuf);
+ export_vnode_to_sb(fdp->fd_jdir, KF_FD_TYPE_JAIL, FREAD, efbuf,
+ lkflags);
}
for (i = 0; fdp->fd_refcnt > 0 && i <= fdp->fd_lastfile; i++) {
if ((fp = fdp->fd_ofiles[i].fde_file) == NULL)
@@ -3274,7 +3281,7 @@
* re-validate and re-evaluate its properties when the
* loop continues.
*/
- error = export_file_to_sb(fp, i, &rights, efbuf);
+ error = export_file_to_sb(fp, i, &rights, efbuf, lkflags);
if (error != 0 || efbuf->remainder == 0)
break;
}
@@ -3308,7 +3315,7 @@
return (error);
}
maxlen = req->oldptr != NULL ? req->oldlen : -1;
- error = kern_proc_filedesc_out(p, &sb, maxlen);
+ error = kern_proc_filedesc_out(p, &sb, maxlen, 0);
error2 = sbuf_finish(&sb);
sbuf_delete(&sb);
return (error != 0 ? error : error2);
@@ -3348,7 +3355,7 @@
vref(vp);
FILEDESC_SUNLOCK(fdp);
- export_vnode_to_kinfo(vp, type, 0, kif);
+ export_vnode_to_kinfo(vp, type, 0, kif, 0);
kinfo_to_okinfo(kif, okif);
error = SYSCTL_OUT(req, okif, sizeof(*okif));
FILEDESC_SLOCK(fdp);
@@ -3391,7 +3398,7 @@
for (i = 0; fdp->fd_refcnt > 0 && i <= fdp->fd_lastfile; i++) {
if ((fp = fdp->fd_ofiles[i].fde_file) == NULL)
continue;
- export_file_to_kinfo(fp, i, NULL, kif, fdp);
+ export_file_to_kinfo(fp, i, NULL, kif, fdp, 0);
FILEDESC_SUNLOCK(fdp);
kinfo_to_okinfo(kif, okif);
error = SYSCTL_OUT(req, okif, sizeof(*okif));
@@ -3474,7 +3481,7 @@
else {
vref(fdp->fd_cdir);
error = export_vnode_to_sb(fdp->fd_cdir, KF_FD_TYPE_CWD,
- FREAD, efbuf);
+ FREAD, efbuf, 0);
}
FILEDESC_SUNLOCK(fdp);
fddrop(fdp);
@@ -3730,7 +3737,8 @@
}
static int
-badfo_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+badfo_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp,
+ int lkflags)
{
return (0);
Index: sys/kern/kern_event.c
===================================================================
--- sys/kern/kern_event.c
+++ sys/kern/kern_event.c
@@ -1832,7 +1832,8 @@
}
static int
-kqueue_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+kqueue_fill_kinfo(struct file *fp, struct kinfo_file *kif,
+ struct filedesc *fdp, int lkflags)
{
kif->kf_type = KF_TYPE_KQUEUE;
Index: sys/kern/kern_exec.c
===================================================================
--- sys/kern/kern_exec.c
+++ sys/kern/kern_exec.c
@@ -550,7 +550,7 @@
*/
if (imgp->auxargs != NULL &&
((args->fname != NULL && args->fname[0] == '/') ||
- vn_fullpath(td, imgp->vp, &imgp->execpath, &imgp->freepath) != 0))
+ vn_fullpath(td, imgp->vp, 0, &imgp->execpath, &imgp->freepath) != 0))
imgp->execpath = args->fname;
if (disallow_high_osrel &&
Index: sys/kern/kern_proc.c
===================================================================
--- sys/kern/kern_proc.c
+++ sys/kern/kern_proc.c
@@ -1977,7 +1977,7 @@
vref(vp);
if (*pidp != -1)
PROC_UNLOCK(p);
- error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
+ error = vn_fullpath(req->td, vp, 0, &retbuf, &freebuf);
vrele(vp);
if (error)
return (error);
@@ -2138,7 +2138,7 @@
kve->kve_shadow_count = obj->shadow_count;
VM_OBJECT_RUNLOCK(obj);
if (vp != NULL) {
- vn_fullpath(curthread, vp, &fullpath,
+ vn_fullpath(curthread, vp, 0, &fullpath,
&freepath);
cred = curthread->td_ucred;
vn_lock(vp, LK_SHARED | LK_RETRY);
@@ -2367,7 +2367,7 @@
kve->kve_shadow_count = obj->shadow_count;
VM_OBJECT_RUNLOCK(obj);
if (vp != NULL) {
- vn_fullpath(curthread, vp, &fullpath,
+ vn_fullpath(curthread, vp, 0, &fullpath,
&freepath);
kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
cred = curthread->td_ucred;
Index: sys/kern/sys_pipe.c
===================================================================
--- sys/kern/sys_pipe.c
+++ sys/kern/sys_pipe.c
@@ -1610,12 +1610,13 @@
}
static int
-pipe_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+pipe_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp,
+ int lkflags)
{
struct pipe *pi;
if (fp->f_type == DTYPE_FIFO)
- return (vn_fill_kinfo(fp, kif, fdp));
+ return (vn_fill_kinfo(fp, kif, fdp, lkflags));
kif->kf_type = KF_TYPE_PIPE;
pi = fp->f_data;
kif->kf_un.kf_pipe.kf_pipe_addr = (uintptr_t)pi;
Index: sys/kern/sys_procdesc.c
===================================================================
--- sys/kern/sys_procdesc.c
+++ sys/kern/sys_procdesc.c
@@ -536,7 +536,7 @@
static int
procdesc_fill_kinfo(struct file *fp, struct kinfo_file *kif,
- struct filedesc *fdp)
+ struct filedesc *fdp, int lkflags)
{
struct procdesc *pdp;
Index: sys/kern/sys_process.c
===================================================================
--- sys/kern/sys_process.c
+++ sys/kern/sys_process.c
@@ -412,7 +412,7 @@
if (vp != NULL) {
freepath = NULL;
fullpath = NULL;
- vn_fullpath(td, vp, &fullpath, &freepath);
+ vn_fullpath(td, vp, 0, &fullpath, &freepath);
vn_lock(vp, LK_SHARED | LK_RETRY);
if (VOP_GETATTR(vp, &vattr, td->td_ucred) == 0) {
pve->pve_fileid = vattr.va_fileid;
Index: sys/kern/sys_socket.c
===================================================================
--- sys/kern/sys_socket.c
+++ sys/kern/sys_socket.c
@@ -310,7 +310,8 @@
}
static int
-soo_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+soo_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp,
+ int lkflags)
{
struct sockaddr *sa;
struct inpcb *inpcb;
Index: sys/kern/tty_pts.c
===================================================================
--- sys/kern/tty_pts.c
+++ sys/kern/tty_pts.c
@@ -585,7 +585,8 @@
}
static int
-ptsdev_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+ptsdev_fill_kinfo(struct file *fp, struct kinfo_file *kif,
+ struct filedesc *fdp, int lkflags)
{
struct tty *tp;
Index: sys/kern/uipc_mqueue.c
===================================================================
--- sys/kern/uipc_mqueue.c
+++ sys/kern/uipc_mqueue.c
@@ -2573,7 +2573,8 @@
}
static int
-mqf_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+mqf_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp,
+ int lkflags)
{
kif->kf_type = KF_TYPE_MQUEUE;
Index: sys/kern/uipc_sem.c
===================================================================
--- sys/kern/uipc_sem.c
+++ sys/kern/uipc_sem.c
@@ -256,7 +256,8 @@
}
static int
-ksem_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+ksem_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp,
+ int lkflags)
{
struct ksem *ks;
Index: sys/kern/uipc_shm.c
===================================================================
--- sys/kern/uipc_shm.c
+++ sys/kern/uipc_shm.c
@@ -1038,7 +1038,7 @@
}
static int
-shm_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+shm_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp, int lkflags)
{
struct shmfd *shmfd;
Index: sys/kern/vfs_cache.c
===================================================================
--- sys/kern/vfs_cache.c
+++ sys/kern/vfs_cache.c
@@ -306,10 +306,10 @@
static void cache_zap(struct namecache *ncp);
-static int vn_vptocnp_locked(struct vnode **vp, struct ucred *cred, char *buf,
- u_int *buflen);
+static int vn_vptocnp_locked(struct vnode **vp, struct ucred *cred,
+ int lkflags, char *buf, u_int *buflen);
static int vn_fullpath1(struct thread *td, struct vnode *vp, struct vnode *rdir,
- char *buf, char **retbuf, u_int buflen);
+ int lkflags, char *buf, char **retbuf, u_int buflen);
static MALLOC_DEFINE(M_VFSCACHE, "vfscache", "VFS name cache entries");
@@ -1081,7 +1081,7 @@
rdir = fdp->fd_rdir;
VREF(rdir);
FILEDESC_SUNLOCK(fdp);
- error = vn_fullpath1(td, cdir, rdir, tmpbuf, &bp, buflen);
+ error = vn_fullpath1(td, cdir, rdir, 0, tmpbuf, &bp, buflen);
vrele(rdir);
vrele(cdir);
@@ -1125,13 +1125,17 @@
* cache (if available)
*/
int
-vn_fullpath(struct thread *td, struct vnode *vn, char **retbuf, char **freebuf)
+vn_fullpath(struct thread *td, struct vnode *vn, int lkflags, char **retbuf,
+ char **freebuf)
{
char *buf;
struct filedesc *fdp;
struct vnode *rdir;
int error;
+ KASSERT((lkflags & ~LK_NOWAIT) == 0,
+ ("invalid lkflags: %08x", lkflags));
+
if (disablefullpath)
return (ENODEV);
if (vn == NULL)
@@ -1143,7 +1147,7 @@
rdir = fdp->fd_rdir;
VREF(rdir);
FILEDESC_SUNLOCK(fdp);
- error = vn_fullpath1(td, vn, rdir, buf, retbuf, MAXPATHLEN);
+ error = vn_fullpath1(td, vn, rdir, lkflags, buf, retbuf, MAXPATHLEN);
vrele(rdir);
if (!error)
@@ -1171,7 +1175,7 @@
if (vn == NULL)
return (EINVAL);
buf = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
- error = vn_fullpath1(td, vn, rootvnode, buf, retbuf, MAXPATHLEN);
+ error = vn_fullpath1(td, vn, rootvnode, 0, buf, retbuf, MAXPATHLEN);
if (!error)
*freebuf = buf;
else
@@ -1185,15 +1189,15 @@
int error;
CACHE_RLOCK();
- error = vn_vptocnp_locked(vp, cred, buf, buflen);
+ error = vn_vptocnp_locked(vp, cred, 0, buf, buflen);
if (error == 0)
CACHE_RUNLOCK();
return (error);
}
static int
-vn_vptocnp_locked(struct vnode **vp, struct ucred *cred, char *buf,
- u_int *buflen)
+vn_vptocnp_locked(struct vnode **vp, struct ucred *cred, int lkflags,
+ char *buf, u_int *buflen)
{
struct vnode *dvp;
struct namecache *ncp;
@@ -1228,9 +1232,17 @@
SDT_PROBE(vfs, namecache, fullpath, miss, vp, 0, 0, 0, 0);
CACHE_RUNLOCK();
- vn_lock(*vp, LK_SHARED | LK_RETRY);
- error = VOP_VPTOCNP(*vp, &dvp, cred, buf, buflen);
- vput(*vp);
+
+ lkflags |= LK_SHARED;
+ if ((lkflags & LK_NOWAIT) == 0)
+ lkflags |= LK_RETRY;
+ error = vn_lock(*vp, lkflags);
+ if (error)
+ vrele(*vp);
+ else {
+ error = VOP_VPTOCNP(*vp, &dvp, cred, buf, buflen);
+ vput(*vp);
+ }
if (error) {
numfullpathfail2++;
SDT_PROBE(vfs, namecache, fullpath, return, error, vp,
@@ -1261,7 +1273,7 @@
*/
static int
vn_fullpath1(struct thread *td, struct vnode *vp, struct vnode *rdir,
- char *buf, char **retbuf, u_int buflen)
+ int lkflags, char *buf, char **retbuf, u_int buflen)
{
int error, slash_prefixed;
#ifdef KDTRACE_HOOKS
@@ -1279,7 +1291,7 @@
vref(vp);
CACHE_RLOCK();
if (vp->v_type != VDIR) {
- error = vn_vptocnp_locked(&vp, td->td_ucred, buf, &buflen);
+ error = vn_vptocnp_locked(&vp, td->td_ucred, lkflags, buf, &buflen);
if (error)
return (error);
if (buflen == 0) {
@@ -1317,7 +1329,7 @@
error, vp, NULL, 0, 0);
break;
}
- error = vn_vptocnp_locked(&vp, td->td_ucred, buf, &buflen);
+ error = vn_vptocnp_locked(&vp, td->td_ucred, lkflags, buf, &buflen);
if (error)
break;
if (buflen == 0) {
Index: sys/kern/vfs_vnops.c
===================================================================
--- sys/kern/vfs_vnops.c
+++ sys/kern/vfs_vnops.c
@@ -2302,7 +2302,8 @@
}
int
-vn_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+vn_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp,
+ int lkflags)
{
struct vnode *vp;
int error;
@@ -2314,23 +2315,26 @@
vp = fp->f_vnode;
vref(vp);
FILEDESC_SUNLOCK(fdp);
- error = vn_fill_kinfo_vnode(vp, kif);
+ error = vn_fill_kinfo_vnode(vp, kif, lkflags);
vrele(vp);
FILEDESC_SLOCK(fdp);
return (error);
}
int
-vn_fill_kinfo_vnode(struct vnode *vp, struct kinfo_file *kif)
+vn_fill_kinfo_vnode(struct vnode *vp, struct kinfo_file *kif, int lkflags)
{
struct vattr va;
char *fullpath, *freepath;
int error;
+ KASSERT((lkflags & ~LK_NOWAIT) == 0,
+ ("invalid lkflags: %08x", lkflags));
+
kif->kf_vnode_type = vntype_to_kinfo(vp->v_type);
freepath = NULL;
fullpath = "-";
- error = vn_fullpath(curthread, vp, &fullpath, &freepath);
+ error = vn_fullpath(curthread, vp, lkflags, &fullpath, &freepath);
if (error == 0) {
strlcpy(kif->kf_path, fullpath, sizeof(kif->kf_path));
}
@@ -2342,7 +2346,14 @@
*/
va.va_fsid = VNOVAL;
va.va_rdev = NODEV;
- vn_lock(vp, LK_SHARED | LK_RETRY);
+
+ lkflags |= LK_SHARED;
+ if ((lkflags & LK_NOWAIT) == 0)
+ lkflags |= LK_RETRY;
+
+ error = vn_lock(vp, lkflags);
+ if (error != 0)
+ return (error);
error = VOP_GETATTR(vp, &va, curthread->td_ucred);
VOP_UNLOCK(vp, 0);
if (error != 0)
Index: sys/ofed/include/linux/linux_compat.c
===================================================================
--- sys/ofed/include/linux/linux_compat.c
+++ sys/ofed/include/linux/linux_compat.c
@@ -590,7 +590,7 @@
static int
linux_file_fill_kinfo(struct file *fp, struct kinfo_file *kif,
- struct filedesc *fdp)
+ struct filedesc *fdp, int lkflags)
{
return (0);
Index: sys/opencrypto/cryptodev.c
===================================================================
--- sys/opencrypto/cryptodev.c
+++ sys/opencrypto/cryptodev.c
@@ -300,7 +300,7 @@
struct ucred *, struct thread *);
static int cryptof_close(struct file *, struct thread *);
static int cryptof_fill_kinfo(struct file *, struct kinfo_file *,
- struct filedesc *);
+ struct filedesc *, int);
static struct fileops cryptofops = {
.fo_read = invfo_rdwr,
@@ -1196,7 +1196,8 @@
}
static int
-cryptof_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+cryptof_fill_kinfo(struct file *fp, struct kinfo_file *kif,
+ struct filedesc *fdp, int lkflags)
{
kif->kf_type = KF_TYPE_CRYPTO;
Index: sys/security/audit/audit_bsm_klib.c
===================================================================
--- sys/security/audit/audit_bsm_klib.c
+++ sys/security/audit/audit_bsm_klib.c
@@ -542,7 +542,7 @@
free(fbuf, M_TEMP);
}
if (cvnp != NULL) {
- error = vn_fullpath(td, cvnp, &rbuf, &fbuf);
+ error = vn_fullpath(td, cvnp, 0, &rbuf, &fbuf);
vdrop(cvnp);
if (error) {
cpath[0] = '\0';
Index: sys/sys/file.h
===================================================================
--- sys/sys/file.h
+++ sys/sys/file.h
@@ -113,7 +113,7 @@
typedef int fo_seek_t(struct file *fp, off_t offset, int whence,
struct thread *td);
typedef int fo_fill_kinfo_t(struct file *fp, struct kinfo_file *kif,
- struct filedesc *fdp);
+ struct filedesc *fdp, int lkflags);
typedef int fo_flags_t;
struct fileops {
@@ -246,7 +246,7 @@
fo_sendfile_t vn_sendfile;
fo_seek_t vn_seek;
fo_fill_kinfo_t vn_fill_kinfo;
-int vn_fill_kinfo_vnode(struct vnode *vp, struct kinfo_file *kif);
+int vn_fill_kinfo_vnode(struct vnode *vp, struct kinfo_file *kif, int lkflags);
void finit(struct file *, u_int, short, void *, struct fileops *);
int fgetvp(struct thread *td, int fd, cap_rights_t *rightsp,
@@ -384,10 +384,11 @@
}
static __inline int
-fo_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+fo_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp,
+ int lkflags)
{
- return ((*fp->f_ops->fo_fill_kinfo)(fp, kif, fdp));
+ return ((*fp->f_ops->fo_fill_kinfo)(fp, kif, fdp, lkflags));
}
#endif /* _KERNEL */
Index: sys/sys/user.h
===================================================================
--- sys/sys/user.h
+++ sys/sys/user.h
@@ -529,7 +529,8 @@
* to be locked on enter. On return the process is unlocked.
*/
-int kern_proc_filedesc_out(struct proc *p, struct sbuf *sb, ssize_t maxlen);
+int kern_proc_filedesc_out(struct proc *p, struct sbuf *sb, ssize_t maxlen,
+ int lkflags);
int kern_proc_cwd_out(struct proc *p, struct sbuf *sb, ssize_t maxlen);
int kern_proc_out(struct proc *p, struct sbuf *sb, int flags);
int kern_proc_vmmap_out(struct proc *p, struct sbuf *sb);
Index: sys/sys/vnode.h
===================================================================
--- sys/sys/vnode.h
+++ sys/sys/vnode.h
@@ -630,8 +630,8 @@
int vn_vptocnp(struct vnode **vp, struct ucred *cred, char *buf,
u_int *buflen);
#define textvp_fullpath(p, rb, rfb) \
- vn_fullpath(FIRST_THREAD_IN_PROC(p), (p)->p_textvp, rb, rfb)
-int vn_fullpath(struct thread *td, struct vnode *vn,
+ vn_fullpath(FIRST_THREAD_IN_PROC(p), (p)->p_textvp, 0, rb, rfb)
+int vn_fullpath(struct thread *td, struct vnode *vn, int lkflags,
char **retbuf, char **freebuf);
int vn_fullpath_global(struct thread *td, struct vnode *vn,
char **retbuf, char **freebuf);

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