Messages in this thread | | | Date | Sun, 9 Mar 2003 23:45:52 +0100 | From | "J.A. Magallon" <> | Subject | Re: Fwd: struct inode size reduction. |
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On 03.09, Dave Jones wrote: > Third retry, perhaps it'll make it through to the list > now that vger is sending mail again... >
If you do not need gcc-2.95 support, you can use anonymous unions:
+ union { + struct pipe_inode_info *i_pipe; + struct block_device *i_bdev; + struct char_device *i_cdev; + };
so you don't even have to change the accesses. Zero cost optimization patch.
I have tested on gcc-3.0, 3.2.2, RH gcc-2.96-98, and 2.95.2. Only 2.95.2 fails.
I do not know the compiler requirements for 2.5, or if there is any agreement in kernel developement for not doing this. If this is the case, sorry for the noise.
-- J.A. Magallon <jamagallon@able.es> \ Software is like sex: werewolf.able.es \ It's better when it's free Mandrake Linux release 9.1 (Cooker) for i586 Linux 2.4.21-pre5-jam0 (gcc 3.2.2 (Mandrake Linux 9.1 3.2.2-3mdk)) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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