On Fri, 20 Apr 2007 12:25:35 +0200 Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
> Add sysctl variables for accounting and limiting the number of user
> mounts.
>
> The maximum number of user mounts is set to 1024 by default. This
> won't in itself enable user mounts, setting a mount to be owned by a
> user is first needed
>
> Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
> ---
>
> Index: linux/include/linux/sysctl.h
> ===================================================================
> --- linux.orig/include/linux/sysctl.h 2007-04-20 11:55:02.000000000 +0200
> +++ linux/include/linux/sysctl.h 2007-04-20 11:55:07.000000000 +0200
> @@ -818,6 +818,8 @@ enum
> FS_AIO_NR=18, /* current system-wide number of aio requests */
> FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */
> FS_INOTIFY=20, /* inotify submenu */
> + FS_NR_USER_MOUNTS=21, /* int:current number of user mounts */
> + FS_MAX_USER_MOUNTS=22, /* int:maximum number of user mounts */
> FS_OCFS2=988, /* ocfs2 */
Is there a special reason why the enumerated sysctls are needed? We're
trying to get away from using them.
diff -puN include/linux/sysctl.h~unprivileged-mounts-account-user-mounts-fix include/linux/sysctl.h
--- a/include/linux/sysctl.h~unprivileged-mounts-account-user-mounts-fix
+++ a/include/linux/sysctl.h
@@ -819,8 +819,6 @@ enum
FS_AIO_NR=18, /* current system-wide number of aio requests */
FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */
FS_INOTIFY=20, /* inotify submenu */
- FS_NR_USER_MOUNTS=21, /* int:current number of user mounts */
- FS_MAX_USER_MOUNTS=22, /* int:maximum number of user mounts */
FS_OCFS2=988, /* ocfs2 */
};
diff -puN kernel/sysctl.c~unprivileged-mounts-account-user-mounts-fix kernel/sysctl.c
--- a/kernel/sysctl.c~unprivileged-mounts-account-user-mounts-fix
+++ a/kernel/sysctl.c
@@ -1028,7 +1028,7 @@ static ctl_table fs_table[] = {
#endif
#endif
{
- .ctl_name = FS_NR_USER_MOUNTS,
+ .ctl_name = CTL_UNNUMBERED,
.procname = "nr_user_mounts",
.data = &nr_user_mounts,
.maxlen = sizeof(int),
@@ -1036,7 +1036,7 @@ static ctl_table fs_table[] = {
.proc_handler = &proc_dointvec,
},
{
- .ctl_name = FS_MAX_USER_MOUNTS,
+ .ctl_name = CTL_UNNUMBERED,
.procname = "max_user_mounts",
.data = &max_user_mounts,
.maxlen = sizeof(int),
_
-
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