diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2023-05-01 14:40:26 +0200 |
|---|---|---|
| committer | Keith Busch <kbusch@kernel.org> | 2023-06-12 10:36:42 -0700 |
| commit | 9d217fb0e778d69b2e3988efbc441976c0fb29b5 (patch) | |
| tree | e01c7da654bee103ebb2347d2a2e536259583c17 /drivers/nvme/host/nvme.h | |
| parent | c60651e32f1e886cd85fd9f591ad2d8706173605 (diff) | |
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>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 953e59f56139..9a585e60e1f2 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -246,8 +246,8 @@ enum nvme_ctrl_flags { struct nvme_ctrl { bool comp_seen; - enum nvme_ctrl_state state; bool identified; + enum nvme_ctrl_state state; spinlock_t lock; struct mutex scan_lock; const struct nvme_ctrl_ops *ops; @@ -279,8 +279,8 @@ struct nvme_ctrl { char name[12]; u16 cntlid; - u32 ctrl_config; u16 mtfa; + u32 ctrl_config; u32 queue_count; u64 cap; @@ -353,10 +353,10 @@ struct nvme_ctrl { bool apst_enabled; /* PCIe only: */ + u16 hmmaxd; u32 hmpre; u32 hmmin; u32 hmminds; - u16 hmmaxd; /* Fabrics only */ u32 ioccsz; |