patch-2.3.99-pre7 linux/fs/coda/psdev.c

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diff -u --recursive --new-file v2.3.99-pre6/linux/fs/coda/psdev.c linux/fs/coda/psdev.c
@@ -35,6 +35,7 @@
 #include <linux/poll.h>
 #include <linux/init.h>
 #include <linux/list.h>
+#include <linux/smp_lock.h>
 #include <asm/io.h>
 #include <asm/segment.h>
 #include <asm/system.h>
@@ -144,7 +145,9 @@
 		        return -EFAULT;
 
 		/* what downcall errors does Venus handle ? */
+		lock_kernel();
 		error = coda_downcall(hdr.opcode, dcbuf, sb);
+		unlock_kernel();
 
 		if ( error) {
 		        printk("psdev_write: coda_downcall error: %d\n", 

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