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| author | Andi Kleen <ak@suse.de> | 2006-06-26 13:56:52 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 10:48:16 -0700 |
| commit | bebfa1013eee1d91b3242e5801cc8fbdfaf148ec (patch) | |
| tree | d1abf916c29bbb5c312717f57798987268aff9a9 /fs/compat.c | |
| parent | f201611fcecdfa825471dc425ee007997228fae4 (diff) | |
| download | lwn-bebfa1013eee1d91b3242e5801cc8fbdfaf148ec.tar.gz lwn-bebfa1013eee1d91b3242e5801cc8fbdfaf148ec.zip | |
[PATCH] x86_64: Add compat_printk and sysctl to turn off compat layer warnings
Sometimes e.g. with crashme the compat layer warnings can be noisy.
Add a way to turn them off by gating all output through compat_printk
that checks a global sysctl. The default is not changed.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/compat.c')
| -rw-r--r-- | fs/compat.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/fs/compat.c b/fs/compat.c index 7e7e5bc4f3cf..e31e9cf96647 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -55,6 +55,20 @@ extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat); +int compat_log = 1; + +int compat_printk(const char *fmt, ...) +{ + va_list ap; + int ret; + if (!compat_log) + return 0; + va_start(ap, fmt); + ret = vprintk(fmt, ap); + va_end(ap); + return ret; +} + /* * Not all architectures have sys_utime, so implement this in terms * of sys_utimes. @@ -359,7 +373,7 @@ static void compat_ioctl_error(struct file *filp, unsigned int fd, sprintf(buf,"'%c'", (cmd>>24) & 0x3f); if (!isprint(buf[1])) sprintf(buf, "%02x", buf[1]); - printk("ioctl32(%s:%d): Unknown cmd fd(%d) " + compat_printk("ioctl32(%s:%d): Unknown cmd fd(%d) " "cmd(%08x){%s} arg(%08x) on %s\n", current->comm, current->pid, (int)fd, (unsigned int)cmd, buf, |