Date: Sun, 10 Jan 2010 21:19:34 GMT From: Fernando <fernando.apesteguia@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/142595: Implementation of "filesystems" file in linprocfs Message-ID: <201001102119.o0ALJYB6076398@www.freebsd.org> Resent-Message-ID: <201001102120.o0ALK2sn046904@freefall.freebsd.org>
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>Number: 142595
>Category: misc
>Synopsis: Implementation of "filesystems" file in linprocfs
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Jan 10 21:20:01 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Fernando
>Release: 8.0-RELEASE
>Organization:
>Environment:
FreeBSD hammer 8.0-RELEASE-p1 FreeBSD 8.0-RELEASE-p1 #11: Fri Jan 1 21:00:36 CET 2010 root@hammer:/usr/obj/usr/src/sys/APEKERNEL amd64
>Description:
This patch implements the "filesystems" file for the linux procfs. Few programs use this file but some exceptions as "procinfo" and other system information utilities.
>How-To-Repeat:
>Fix:
The attached patch implements the mentioned file. It was tested against 8.0-RELEASE-p1.
Patch attached with submission follows:
--- sys/compat/linprocfs/linprocfs.c 2009-12-28 21:48:50.000000000 +0100
+++ /home/fernape/kernel_devel/linprocfs/linprocfs.c 2009-12-28 21:44:46.000000000 +0100
@@ -881,6 +881,33 @@
}
/*
+ * Filler function for proc/filesystems
+ */
+static int
+linprocfs_dofilesystems(PFS_FILL_ARGS)
+{
+
+ /*
+ * Traverse the mountlist to get the in-use
+ * filesystems
+ */
+
+ struct mount *iterator;
+ struct vfsconf *tmp;
+
+ mtx_lock(&mountlist_mtx);
+
+ TAILQ_FOREACH(iterator, &mountlist, mnt_list){
+ tmp = iterator->mnt_vfc;
+ sbuf_printf(sb, "\t%s\n",tmp->vfc_name);
+ }
+
+ mtx_unlock(&mountlist_mtx);
+
+ return 0;
+}
+
+/*
* Filler function for proc/pid/cmdline
*/
static int
@@ -1262,6 +1289,8 @@
NULL, NULL, NULL, PFS_RD);
pfs_create_file(root, "devices", &linprocfs_dodevices,
NULL, NULL, NULL, PFS_RD);
+ pfs_create_file(root, "filesystems", &linprocfs_dofilesystems,
+ NULL, NULL, NULL, PFS_RD);
pfs_create_file(root, "loadavg", &linprocfs_doloadavg,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(root, "meminfo", &linprocfs_domeminfo,
>Release-Note:
>Audit-Trail:
>Unformatted:
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