[PATCH] Fix suid_dumpable and lease-break-time sysctls

From: Matthew Wilcox
Date: Fri Mar 27 2009 - 09:32:20 EST



Arne de Bruijn points out in Bugzilla 12953 that commit
76fdbb25f963de5dc1e308325f0578a2f92b1c2d mistakenly limits
lease-break-time instead of suid_dumpable.

Signed-off-by: Matthew Wilcox <matthew@xxxxxx>

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index c5ef44f..7755ae7 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -95,12 +95,9 @@ static int sixty = 60;
static int neg_one = -1;
#endif

-#if defined(CONFIG_MMU) && defined(CONFIG_FILE_LOCKING)
-static int two = 2;
-#endif
-
static int zero;
static int one = 1;
+static int two = 2;
static unsigned long one_ul = 1;
static int one_hundred = 100;

@@ -1373,10 +1370,7 @@ static struct ctl_table fs_table[] = {
.data = &lease_break_time,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &zero,
- .extra2 = &two,
+ .proc_handler = &proc_dointvec,
},
#endif
#ifdef CONFIG_AIO
@@ -1417,7 +1411,10 @@ static struct ctl_table fs_table[] = {
.data = &suid_dumpable,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &zero,
+ .extra2 = &two,
},
#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE)
{

--
Matthew Wilcox Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
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