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Code Issues Releases Wiki Activity

files: Print more info about unsupported fd to dump

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Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2013-11-21 15:28:37 +04:00
parent 2677006cf5
commit 42bd5163df
1 changed files with 19 additions and 9 deletions
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28
files.c
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@@ -239,10 +239,10 @@ static int fill_fd_params(struct parasite_ctl *ctl, int fd, int lfd,
return 0;
}
static int dump_unsupp_fd(const struct fd_parms *p)
static int dump_unsupp_fd(const struct fd_parms *p, char *more, char *info)
{
pr_err("Can't dump file %d of that type [%o]\n",
p->fd, p->stat.st_mode);
pr_err("Can't dump file %d of that type [%o] (%s %s)\n",
p->fd, p->stat.st_mode, more, info);
return -1;
}
@@ -275,8 +275,12 @@ static int dump_chrdev(struct fd_parms *p, int lfd, const int fdinfo)
if (ops)
break;
/* fallthrough */
default:
return dump_unsupp_fd(p);
default: {
char more[32];
sprintf(more, "%d:%d", maj, minor(p->stat.st_dev));
return dump_unsupp_fd(p, "chr", more);
}
}
return do_dump_gen_file(p, lfd, ops, fdinfo);
@@ -320,8 +324,14 @@ static int dump_one_file(struct parasite_ctl *ctl, int fd, int lfd, struct fd_op
ops = &fanotify_dump_ops;
else if (is_signalfd_link(lfd))
ops = &signalfd_dump_ops;
else
return dump_unsupp_fd(&p);
else {
char more[64];
if (read_fd_link(fd, more, sizeof(more)))
more[0] = '\0';
return dump_unsupp_fd(&p, "anon", more);
}
return do_dump_gen_file(&p, lfd, ops, fdinfo);
}
@@ -339,7 +349,7 @@ static int dump_one_file(struct parasite_ctl *ctl, int fd, int lfd, struct fd_op
if (check_ns_proc(&link))
return do_dump_gen_file(&p, lfd, &nsfile_dump_ops, fdinfo);
return dump_unsupp_fd(&p);
return dump_unsupp_fd(&p, "reg", link.name + 1);
}
if (S_ISFIFO(p.stat.st_mode)) {
@@ -351,7 +361,7 @@ static int dump_one_file(struct parasite_ctl *ctl, int fd, int lfd, struct fd_op
return do_dump_gen_file(&p, lfd, ops, fdinfo);
}
return dump_unsupp_fd(&p);
return dump_unsupp_fd(&p, "unknown", NULL);
}
int dump_task_files_seized(struct parasite_ctl *ctl, struct pstree_item *item,