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nvme: reorder fields in 'struct nvme_ctrl'
Group some variables based on their sizes to reduce holes. On x86_64, this shrinks the size of 'struct nvme_ctrl' from 5368 to 5344 bytes when all CONFIG_* are defined. This structure is embedded into some other structures, so it helps reducing their size as well. 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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@ -246,8 +246,8 @@ enum nvme_ctrl_flags {
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struct nvme_ctrl {
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bool comp_seen;
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enum nvme_ctrl_state state;
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bool identified;
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enum nvme_ctrl_state state;
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spinlock_t lock;
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struct mutex scan_lock;
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const struct nvme_ctrl_ops *ops;
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@ -279,8 +279,8 @@ struct nvme_ctrl {
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char name[12];
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u16 cntlid;
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u32 ctrl_config;
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u16 mtfa;
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u32 ctrl_config;
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u32 queue_count;
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u64 cap;
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@ -353,10 +353,10 @@ struct nvme_ctrl {
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bool apst_enabled;
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/* PCIe only: */
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u16 hmmaxd;
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u32 hmpre;
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u32 hmmin;
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u32 hmminds;
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u16 hmmaxd;
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/* Fabrics only */
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u32 ioccsz;
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