Re: [PATCH] staging: lustre: Replaces 'uint32_t' with '__u32' and 'uint64_t' with '__u64'.

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On Oct 30, 2017, at 01:58, Roman Storozhenko <romeusmeister@xxxxxxxxx> wrote:
> 
> There are two reasons for that:
> 1) As Linus Torvalds said we should use kernel types:
> http://lkml.iu.edu/hypermail//linux/kernel/1506.0/00160.html
> 
> 2) There are only few places in the lustre codebase that use such types.
> In the most cases it uses '__u32' and '__u64'.
> 
> Signed-off-by: Roman Storozhenko <romeusmeister@xxxxxxxxx>

Reviewed-by: Andreas Dilger <andreas.dilger@xxxxxxxxx>

> ---
> drivers/staging/lustre/lustre/include/lustre_sec.h |  4 ++--
> drivers/staging/lustre/lustre/llite/vvp_dev.c      |  2 +-
> drivers/staging/lustre/lustre/lov/lov_internal.h   | 12 ++++++------
> drivers/staging/lustre/lustre/osc/osc_internal.h   |  6 +++---
> 4 files changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/staging/lustre/lustre/include/lustre_sec.h b/drivers/staging/lustre/lustre/include/lustre_sec.h
> index 03a970b..c616ae5 100644
> --- a/drivers/staging/lustre/lustre/include/lustre_sec.h
> +++ b/drivers/staging/lustre/lustre/include/lustre_sec.h
> @@ -340,8 +340,8 @@ void sptlrpc_conf_client_adapt(struct obd_device *obd);
> #define SPTLRPC_MAX_PAYLOAD     (1024)
> 
> struct vfs_cred {
> -	uint32_t	vc_uid;
> -	uint32_t	vc_gid;
> +	__u32	vc_uid;
> +	__u32	vc_gid;
> };
> 
> struct ptlrpc_ctx_ops {
> diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
> index f9d9a16..9a98a95 100644
> --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
> +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
> @@ -383,7 +383,7 @@ int cl_sb_fini(struct super_block *sb)
> struct vvp_pgcache_id {
> 	unsigned int		 vpi_bucket;
> 	unsigned int		 vpi_depth;
> -	uint32_t		 vpi_index;
> +	__u32			 vpi_index;
> 
> 	unsigned int		 vpi_curdep;
> 	struct lu_object_header *vpi_obj;
> diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h
> index a21f074..49a106c 100644
> --- a/drivers/staging/lustre/lustre/lov/lov_internal.h
> +++ b/drivers/staging/lustre/lustre/lov/lov_internal.h
> @@ -114,19 +114,19 @@ static inline const struct lsm_operations *lsm_op_find(int magic)
>  */
> #if BITS_PER_LONG == 64
> # define lov_do_div64(n, base) ({					\
> -	uint64_t __base = (base);					\
> -	uint64_t __rem;							\
> -	__rem = ((uint64_t)(n)) % __base;				\
> -	(n) = ((uint64_t)(n)) / __base;					\
> +	__u64 __base = (base);						\
> +	__u64 __rem;							\
> +	__rem = ((__u64)(n)) % __base;				\
> +	(n) = ((__u64)(n)) / __base;					\
> 	__rem;								\
> })
> #elif BITS_PER_LONG == 32
> # define lov_do_div64(n, base) ({					\
> -	uint64_t __rem;							\
> +	__u64 __rem;							\
> 	if ((sizeof(base) > 4) && (((base) & 0xffffffff00000000ULL) != 0)) {  \
> 		int __remainder;					      \
> 		LASSERTF(!((base) & (LOV_MIN_STRIPE_SIZE - 1)), "64 bit lov " \
> -			 "division %llu / %llu\n", (n), (uint64_t)(base));    \
> +			 "division %llu / %llu\n", (n), (__u64)(base));    \
> 		__remainder = (n) & (LOV_MIN_STRIPE_SIZE - 1);		\
> 		(n) >>= LOV_MIN_STRIPE_BITS;				\
> 		__rem = do_div(n, (base) >> LOV_MIN_STRIPE_BITS);	\
> diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h
> index a536908..92d2e1f 100644
> --- a/drivers/staging/lustre/lustre/osc/osc_internal.h
> +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h
> @@ -167,9 +167,9 @@ struct osc_device {
> 
> 	/* Write stats is actually protected by client_obd's lock. */
> 	struct osc_stats {
> -		uint64_t     os_lockless_writes;	  /* by bytes */
> -		uint64_t     os_lockless_reads;	   /* by bytes */
> -		uint64_t     os_lockless_truncates;       /* by times */
> +		__u64     os_lockless_writes;	  /* by bytes */
> +		__u64     os_lockless_reads;	   /* by bytes */
> +		__u64     os_lockless_truncates;       /* by times */
> 	} od_stats;
> 
> 	/* configuration item(s) */
> -- 
> 2.7.4
> 

Cheers, Andreas
--
Andreas Dilger
Lustre Principal Architect
Intel Corporation







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