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nvme: reorder fields in 'struct nvme_ctrl'

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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>
This commit is contained in:
Christophe JAILLET
2023-05-01 14:40:26 +02:00
committed by Keith Busch
parent c60651e32f
commit 9d217fb0e7
1 changed files with 3 additions and 3 deletions
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6
drivers/nvme/host/nvme.h
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@@ -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;