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Do not return success and a string "unknown" when vn_fullpath() was unable

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to resolve the path of the text vnode of the process. The behaviour is
very confusing for any consumer of the procfs, in particular, java.

Reported and tested by:	bf
MFC after:	2 weeks
Approved by:	re (bz)
This commit is contained in:
Konstantin Belousov 2011-08-16 20:13:17 +00:00
parent 9c00bb9190
commit 4c023a3365
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=224915
1 changed files with 9 additions and 6 deletions
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15
sys/fs/procfs/procfs.c
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@ -67,20 +67,23 @@
int
procfs_doprocfile(PFS_FILL_ARGS)
{
char *fullpath = "unknown";
char *freepath = NULL;
char *fullpath;
char *freepath;
struct vnode *textvp;
int error;
freepath = NULL;
PROC_LOCK(p);
textvp = p->p_textvp;
vhold(textvp);
PROC_UNLOCK(p);
vn_fullpath(td, textvp, &fullpath, &freepath);
error = vn_fullpath(td, textvp, &fullpath, &freepath);
vdrop(textvp);
sbuf_printf(sb, "%s", fullpath);
if (freepath)
if (error == 0)
sbuf_printf(sb, "%s", fullpath);
if (freepath != NULL)
free(freepath, M_TEMP);
return (0);
return (error);
}
/*