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block: constify struct blk_integrity_profile

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blk_integrity_profile's are never modified, so mark them 'const' so that
they are placed in .rodata and benefit from memory protection.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Eric Biggers 2017-03-24 18:03:48 -07:00 committed by Jens Axboe
parent 1be7d2073e
commit 869ab90f0a
4 changed files with 14 additions and 14 deletions
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2
block/blk-integrity.c
View File

@ -389,7 +389,7 @@ static int blk_integrity_nop_fn(struct blk_integrity_iter *iter)
return 0;
}
static struct blk_integrity_profile nop_profile = {
static const struct blk_integrity_profile nop_profile = {
.name = "nop",
.generate_fn = blk_integrity_nop_fn,
.verify_fn = blk_integrity_nop_fn,

8
block/t10-pi.c
View File

@ -160,28 +160,28 @@ static int t10_pi_type3_verify_ip(struct blk_integrity_iter *iter)
return t10_pi_verify(iter, t10_pi_ip_fn, 3);
}
struct blk_integrity_profile t10_pi_type1_crc = {
const struct blk_integrity_profile t10_pi_type1_crc = {
.name = "T10-DIF-TYPE1-CRC",
.generate_fn = t10_pi_type1_generate_crc,
.verify_fn = t10_pi_type1_verify_crc,
};
EXPORT_SYMBOL(t10_pi_type1_crc);
struct blk_integrity_profile t10_pi_type1_ip = {
const struct blk_integrity_profile t10_pi_type1_ip = {
.name = "T10-DIF-TYPE1-IP",
.generate_fn = t10_pi_type1_generate_ip,
.verify_fn = t10_pi_type1_verify_ip,
};
EXPORT_SYMBOL(t10_pi_type1_ip);
struct blk_integrity_profile t10_pi_type3_crc = {
const struct blk_integrity_profile t10_pi_type3_crc = {
.name = "T10-DIF-TYPE3-CRC",
.generate_fn = t10_pi_type3_generate_crc,
.verify_fn = t10_pi_type3_verify_crc,
};
EXPORT_SYMBOL(t10_pi_type3_crc);
struct blk_integrity_profile t10_pi_type3_ip = {
const struct blk_integrity_profile t10_pi_type3_ip = {
.name = "T10-DIF-TYPE3-IP",
.generate_fn = t10_pi_type3_generate_ip,
.verify_fn = t10_pi_type3_verify_ip,

10
include/linux/genhd.h
View File

@ -159,11 +159,11 @@ struct badblocks;
#if defined(CONFIG_BLK_DEV_INTEGRITY)
struct blk_integrity {
struct blk_integrity_profile *profile;
unsigned char flags;
unsigned char tuple_size;
unsigned char interval_exp;
unsigned char tag_size;
const struct blk_integrity_profile *profile;
unsigned char flags;
unsigned char tuple_size;
unsigned char interval_exp;
unsigned char tag_size;
};
#endif /* CONFIG_BLK_DEV_INTEGRITY */

8
include/linux/t10-pi.h
View File

@ -34,9 +34,9 @@ struct t10_pi_tuple {
};
extern struct blk_integrity_profile t10_pi_type1_crc;
extern struct blk_integrity_profile t10_pi_type1_ip;
extern struct blk_integrity_profile t10_pi_type3_crc;
extern struct blk_integrity_profile t10_pi_type3_ip;
extern const struct blk_integrity_profile t10_pi_type1_crc;
extern const struct blk_integrity_profile t10_pi_type1_ip;
extern const struct blk_integrity_profile t10_pi_type3_crc;
extern const struct blk_integrity_profile t10_pi_type3_ip;
#endif