> -----Original Message----- > From: kernelnewbies-bounces@xxxxxxxxxxxxxxxxx [mailto:kernelnewbies- > bounces@xxxxxxxxxxxxxxxxx] On Behalf Of william douglas > Sent: Thursday, August 11, 2011 1:23 PM > To: kernelnewbies@xxxxxxxxxxxxxxxxx > Subject: SYSLOG_ACTION_READ_ALL question > > Hello all, > > I'm trying to figure out why the do_syslog code in kernel/printk.c is > using put_user instead of copy_to_user. > I *THINK* this has something to do with copy_to_user not being well-behaved in other than process context and since printk() gets called in all contexts, it wouldn't be a safe operation. But don't take my word for it. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
