Eric Dumazet wrote:
--- linux-2.6.14-rc2-orig/include/linux/fs.h 2005-09-20 05:00:41.000000000 +0200
+++ linux-2.6.14-rc2/include/linux/fs.h 2005-09-24 04:52:20.000000000 +0200
@@ -574,7 +574,13 @@
#define RA_FLAG_INCACHE 0x02 /* file is already in cache */
struct file {
- struct list_head f_list;
+/*
+ * f_list and f_rcuhead can share the same memory location
+ */
+ union {
+ struct list_head fu_list;
+ struct rcu_head fu_rcuhead;
+ } f_u;
I don't think you need to explain this basic C semantic to
the reader if they have gotten this far ;)
Instead, explain when fu_list and fu_rcuhead are used.
Something along the lines of
/*
* fu_list becomes invalid after file_free is called
* and queued via fu_rcuhead for RCU freeing
*/
Nick
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |