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zio: use unsigned values for enum

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cppcheck complains about the use of 1 << 31, because enums are signed
ints which cannot represent this. As discussed in issue #12611, it
appears that with C99, we can use an unsiged int for the enum, on most
platforms.

I've crafted this commit for just the include/sys/zio.h header, as it's
the only one with a shift of 31. If this is something we want to adopt
in the rest of the project, I will go through and apply it to the rest
of the project.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Signed-off-by: Teodor Spæren <teodor@sparen.no>
Closes #12611 
Closes #12615
This commit is contained in:
Teodor Spæren 2021-10-11 19:58:06 +02:00 committed by GitHub
parent 280d0f0ce4
commit d785245857
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 36 additions and 36 deletions
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72
include/sys/zio.h
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@ -104,7 +104,7 @@ enum zio_checksum {
#define ZIO_CHECKSUM_DEFAULT ZIO_CHECKSUM_ON #define ZIO_CHECKSUM_DEFAULT ZIO_CHECKSUM_ON
#define ZIO_CHECKSUM_MASK 0xffULL #define ZIO_CHECKSUM_MASK 0xffULL
#define ZIO_CHECKSUM_VERIFY (1 << 8) #define ZIO_CHECKSUM_VERIFY (1U << 8)
#define ZIO_DEDUPCHECKSUM ZIO_CHECKSUM_SHA256 #define ZIO_DEDUPCHECKSUM ZIO_CHECKSUM_SHA256
@ -169,27 +169,27 @@ enum zio_flag {
* Flags inherited by gang, ddt, and vdev children, * Flags inherited by gang, ddt, and vdev children,
* and that must be equal for two zios to aggregate * and that must be equal for two zios to aggregate
*/ */
ZIO_FLAG_DONT_AGGREGATE = 1 << 0, ZIO_FLAG_DONT_AGGREGATE = 1U << 0,
ZIO_FLAG_IO_REPAIR = 1 << 1, ZIO_FLAG_IO_REPAIR = 1U << 1,
ZIO_FLAG_SELF_HEAL = 1 << 2, ZIO_FLAG_SELF_HEAL = 1U << 2,
ZIO_FLAG_RESILVER = 1 << 3, ZIO_FLAG_RESILVER = 1U << 3,
ZIO_FLAG_SCRUB = 1 << 4, ZIO_FLAG_SCRUB = 1U << 4,
ZIO_FLAG_SCAN_THREAD = 1 << 5, ZIO_FLAG_SCAN_THREAD = 1U << 5,
ZIO_FLAG_PHYSICAL = 1 << 6, ZIO_FLAG_PHYSICAL = 1U << 6,
#define ZIO_FLAG_AGG_INHERIT (ZIO_FLAG_CANFAIL - 1) #define ZIO_FLAG_AGG_INHERIT (ZIO_FLAG_CANFAIL - 1)
/* /*
* Flags inherited by ddt, gang, and vdev children. * Flags inherited by ddt, gang, and vdev children.
*/ */
ZIO_FLAG_CANFAIL = 1 << 7, /* must be first for INHERIT */ ZIO_FLAG_CANFAIL = 1U << 7, /* must be first for INHERIT */
ZIO_FLAG_SPECULATIVE = 1 << 8, ZIO_FLAG_SPECULATIVE = 1U << 8,
ZIO_FLAG_CONFIG_WRITER = 1 << 9, ZIO_FLAG_CONFIG_WRITER = 1U << 9,
ZIO_FLAG_DONT_RETRY = 1 << 10, ZIO_FLAG_DONT_RETRY = 1U << 10,
ZIO_FLAG_DONT_CACHE = 1 << 11, ZIO_FLAG_DONT_CACHE = 1U << 11,
ZIO_FLAG_NODATA = 1 << 12, ZIO_FLAG_NODATA = 1U << 12,
ZIO_FLAG_INDUCE_DAMAGE = 1 << 13, ZIO_FLAG_INDUCE_DAMAGE = 1U << 13,
ZIO_FLAG_IO_ALLOCATING = 1 << 14, ZIO_FLAG_IO_ALLOCATING = 1U << 14,
#define ZIO_FLAG_DDT_INHERIT (ZIO_FLAG_IO_RETRY - 1) #define ZIO_FLAG_DDT_INHERIT (ZIO_FLAG_IO_RETRY - 1)
#define ZIO_FLAG_GANG_INHERIT (ZIO_FLAG_IO_RETRY - 1) #define ZIO_FLAG_GANG_INHERIT (ZIO_FLAG_IO_RETRY - 1)
@ -197,29 +197,29 @@ enum zio_flag {
/* /*
* Flags inherited by vdev children. * Flags inherited by vdev children.
*/ */
ZIO_FLAG_IO_RETRY = 1 << 15, /* must be first for INHERIT */ ZIO_FLAG_IO_RETRY = 1U << 15, /* must be first for INHERIT */
ZIO_FLAG_PROBE = 1 << 16, ZIO_FLAG_PROBE = 1U << 16,
ZIO_FLAG_TRYHARD = 1 << 17, ZIO_FLAG_TRYHARD = 1U << 17,
ZIO_FLAG_OPTIONAL = 1 << 18, ZIO_FLAG_OPTIONAL = 1U << 18,
#define ZIO_FLAG_VDEV_INHERIT (ZIO_FLAG_DONT_QUEUE - 1) #define ZIO_FLAG_VDEV_INHERIT (ZIO_FLAG_DONT_QUEUE - 1)
/* /*
* Flags not inherited by any children. * Flags not inherited by any children.
*/ */
ZIO_FLAG_DONT_QUEUE = 1 << 19, /* must be first for INHERIT */ ZIO_FLAG_DONT_QUEUE = 1U << 19, /* must be first for INHERIT */
ZIO_FLAG_DONT_PROPAGATE = 1 << 20, ZIO_FLAG_DONT_PROPAGATE = 1U << 20,
ZIO_FLAG_IO_BYPASS = 1 << 21, ZIO_FLAG_IO_BYPASS = 1U << 21,
ZIO_FLAG_IO_REWRITE = 1 << 22, ZIO_FLAG_IO_REWRITE = 1U << 22,
ZIO_FLAG_RAW_COMPRESS = 1 << 23, ZIO_FLAG_RAW_COMPRESS = 1U << 23,
ZIO_FLAG_RAW_ENCRYPT = 1 << 24, ZIO_FLAG_RAW_ENCRYPT = 1U << 24,
ZIO_FLAG_GANG_CHILD = 1 << 25, ZIO_FLAG_GANG_CHILD = 1U << 25,
ZIO_FLAG_DDT_CHILD = 1 << 26, ZIO_FLAG_DDT_CHILD = 1U << 26,
ZIO_FLAG_GODFATHER = 1 << 27, ZIO_FLAG_GODFATHER = 1U << 27,
ZIO_FLAG_NOPWRITE = 1 << 28, ZIO_FLAG_NOPWRITE = 1U << 28,
ZIO_FLAG_REEXECUTED = 1 << 29, ZIO_FLAG_REEXECUTED = 1U << 29,
ZIO_FLAG_DELEGATED = 1 << 30, ZIO_FLAG_DELEGATED = 1U << 30,
ZIO_FLAG_FASTWRITE = 1 << 31, ZIO_FLAG_FASTWRITE = 1U << 31,
}; };
#define ZIO_FLAG_MUSTSUCCEED 0 #define ZIO_FLAG_MUSTSUCCEED 0
@ -237,8 +237,8 @@ enum zio_flag {
(((zio)->io_flags & ZIO_FLAG_VDEV_INHERIT) | \ (((zio)->io_flags & ZIO_FLAG_VDEV_INHERIT) | \
ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_CANFAIL) ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_CANFAIL)
#define ZIO_CHILD_BIT(x) (1 << (x)) #define ZIO_CHILD_BIT(x) (1U << (x))
#define ZIO_CHILD_BIT_IS_SET(val, x) ((val) & (1 << (x))) #define ZIO_CHILD_BIT_IS_SET(val, x) ((val) & (1U << (x)))
enum zio_child { enum zio_child {
ZIO_CHILD_VDEV = 0, ZIO_CHILD_VDEV = 0,
@ -404,7 +404,7 @@ typedef zio_t *zio_pipe_stage_t(zio_t *zio);
* only apply to ZIO_TYPE_TRIM zios are distinct from io_flags. * only apply to ZIO_TYPE_TRIM zios are distinct from io_flags.
*/ */
enum trim_flag { enum trim_flag {
ZIO_TRIM_SECURE = 1 << 0, ZIO_TRIM_SECURE = 1U << 0,
}; };
typedef struct zio_alloc_list { typedef struct zio_alloc_list {