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nvmet: reorder fields in 'struct nvme_dhchap_queue_context'
Group some variables based on their sizes to reduce holes. On x86_64, this shrinks the size of 'struct nvme_dhchap_queue_context' from 416 to 400 bytes. This structure is kvcalloc()'ed in nvme_auth_init_ctrl(), so it is likely that the allocation can be relatively big. Saving 16 bytes per structure may might a slight difference. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
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1 changed files with 3 additions and 3 deletions
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@ -30,18 +30,18 @@ struct nvme_dhchap_queue_context {
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u32 s2;
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u16 transaction;
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u8 status;
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u8 dhgroup_id;
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u8 hash_id;
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size_t hash_len;
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u8 dhgroup_id;
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u8 c1[64];
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u8 c2[64];
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u8 response[64];
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u8 *host_response;
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u8 *ctrl_key;
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int ctrl_key_len;
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u8 *host_key;
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int host_key_len;
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u8 *sess_key;
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int ctrl_key_len;
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int host_key_len;
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int sess_key_len;
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};
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