git: f61af036ab29 - stable/13 - procfs: return right hardlink from /proc/curproc/file

The branch stable/13 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=f61af036ab291b558e8632bc58290b3321c2bafc

commit f61af036ab291b558e8632bc58290b3321c2bafc
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2021-10-29 01:43:32 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2021-11-06 02:12:32 +0000

    procfs: return right hardlink from /proc/curproc/file
    
    PR:     248184
    
    (cherry picked from commit e5248548f95ff1c89667847e0d945dea38adeca7)
---
 sys/fs/procfs/procfs.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/sys/fs/procfs/procfs.c b/sys/fs/procfs/procfs.c
index c492533c52bb..697bbfc9877a 100644
--- a/sys/fs/procfs/procfs.c
+++ b/sys/fs/procfs/procfs.c
@@ -69,22 +69,17 @@
 int
 procfs_doprocfile(PFS_FILL_ARGS)
 {
-	char *fullpath;
-	char *freepath;
-	struct vnode *textvp;
+	char *fullpath, *freepath, *binpath;
 	int error;
 
 	freepath = NULL;
+	binpath = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
 	PROC_LOCK(p);
-	textvp = p->p_textvp;
-	vhold(textvp);
-	PROC_UNLOCK(p);
-	error = vn_fullpath(textvp, &fullpath, &freepath);
-	vdrop(textvp);
+	error = proc_get_binpath(p, binpath, &fullpath, &freepath);
 	if (error == 0)
-		sbuf_printf(sb, "%s", fullpath);
-	if (freepath != NULL)
-		free(freepath, M_TEMP);
+		sbuf_printf(sb, "%s", fullpath == NULL ? "" : fullpath);
+	free(binpath, M_TEMP);
+	free(freepath, M_TEMP);
 	return (error);
 }