From: Al Viro Date: Sun, 19 Jun 2011 00:42:00 +0000 (-0400) Subject: proc_sys_permission() is OK in RCU mode X-Git-Tag: firefly_0821_release~3680^2~5214^2~3 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1aec7036d0c2996c86ce483ca0a28f3b20807b43;p=firefly-linux-kernel-4.4.55.git proc_sys_permission() is OK in RCU mode nothing blocking there, since all instances of sysctl ->permissions() method are non-blocking - both of them, that is. Signed-off-by: Al Viro --- diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index f50133c11c24..d167de365a8d 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -304,9 +304,6 @@ static int proc_sys_permission(struct inode *inode, int mask,unsigned int flags) struct ctl_table *table; int error; - if (flags & IPERM_FLAG_RCU) - return -ECHILD; - /* Executable files are not allowed under /proc/sys/ */ if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode)) return -EACCES;