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| author | Eric W. Biederman <ebiederm@xmission.com> | 2006-11-05 23:52:11 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-11-06 01:46:23 -0800 |
| commit | 0e009be8a0c2309f3696df70f72ef0075aa34c9c (patch) | |
| tree | c5bb299c54ec1334dd934f06ad5b6caa2880b5dd | |
| parent | 64efade11cddc4237c1b95ea4ca18af122a7e19e (diff) | |
| download | linux-3.10-0e009be8a0c2309f3696df70f72ef0075aa34c9c.tar.gz linux-3.10-0e009be8a0c2309f3696df70f72ef0075aa34c9c.tar.bz2 linux-3.10-0e009be8a0c2309f3696df70f72ef0075aa34c9c.zip | |
[PATCH] Improve the removed sysctl warnings
Don't warn about libpthread's access to kernel.version. When it receives
-ENOSYS it will read /proc/sys/kernel/version.
If anything else shows up print the sysctl number string.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Cal Peake <cp@absolutedigital.net>
Cc: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | kernel/sysctl.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 8bff2c18fb5..0c8e805bbd6 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -2680,13 +2680,33 @@ int sysctl_ms_jiffies(ctl_table *table, int __user *name, int nlen, asmlinkage long sys_sysctl(struct __sysctl_args __user *args) { static int msg_count; + struct __sysctl_args tmp; + int name[CTL_MAXNAME]; + int i; + + /* Read in the sysctl name for better debug message logging */ + if (copy_from_user(&tmp, args, sizeof(tmp))) + return -EFAULT; + if (tmp.nlen <= 0 || tmp.nlen >= CTL_MAXNAME) + return -ENOTDIR; + for (i = 0; i < tmp.nlen; i++) + if (get_user(name[i], tmp.name + i)) + return -EFAULT; + + /* Ignore accesses to kernel.version */ + if ((tmp.nlen == 2) && (name[0] == CTL_KERN) && (name[1] == KERN_VERSION)) + goto out; if (msg_count < 5) { msg_count++; printk(KERN_INFO "warning: process `%s' used the removed sysctl " - "system call\n", current->comm); + "system call with ", current->comm); + for (i = 0; i < tmp.nlen; i++) + printk("%d.", name[i]); + printk("\n"); } +out: return -ENOSYS; } |