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authorMartin K. Petersen <martin.petersen@oracle.com>2014-09-26 19:20:02 -0400
committerJens Axboe <axboe@fb.com>2014-09-27 09:14:51 -0600
commit8288f496eb1b1905c425e92eaf1abbb29119217b (patch)
tree12559a35cd7ec36bffe28c29a618d0d63b9c1c9f
parent1859308853b19c4daf4afaab910d3d52ac1ec2ff (diff)
downloadlinux-8288f496eb1b1905c425e92eaf1abbb29119217b.tar.bz2
block: Add prefix to block integrity profile flags
Add a BLK_ prefix to the integrity profile flags. Also rename the flags to be more consistent with the generate/verify terminology in the rest of the integrity code. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--block/bio-integrity.c4
-rw-r--r--block/blk-integrity.c43
-rw-r--r--include/linux/blkdev.h6
3 files changed, 28 insertions, 25 deletions
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index fe4de033b34c..e64733bb29b6 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -173,11 +173,11 @@ bool bio_integrity_enabled(struct bio *bio)
return false;
if (bio_data_dir(bio) == READ && bi->verify_fn != NULL &&
- (bi->flags & INTEGRITY_FLAG_READ))
+ (bi->flags & BLK_INTEGRITY_VERIFY))
return true;
if (bio_data_dir(bio) == WRITE && bi->generate_fn != NULL &&
- (bi->flags & INTEGRITY_FLAG_WRITE))
+ (bi->flags & BLK_INTEGRITY_GENERATE))
return true;
return false;
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 3a83a7d08177..a7436ccc936b 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -269,42 +269,42 @@ static ssize_t integrity_tag_size_show(struct blk_integrity *bi, char *page)
return sprintf(page, "0\n");
}
-static ssize_t integrity_read_store(struct blk_integrity *bi,
- const char *page, size_t count)
+static ssize_t integrity_verify_store(struct blk_integrity *bi,
+ const char *page, size_t count)
{
char *p = (char *) page;
unsigned long val = simple_strtoul(p, &p, 10);
if (val)
- bi->flags |= INTEGRITY_FLAG_READ;
+ bi->flags |= BLK_INTEGRITY_VERIFY;
else
- bi->flags &= ~INTEGRITY_FLAG_READ;
+ bi->flags &= ~BLK_INTEGRITY_VERIFY;
return count;
}
-static ssize_t integrity_read_show(struct blk_integrity *bi, char *page)
+static ssize_t integrity_verify_show(struct blk_integrity *bi, char *page)
{
- return sprintf(page, "%d\n", (bi->flags & INTEGRITY_FLAG_READ) != 0);
+ return sprintf(page, "%d\n", (bi->flags & BLK_INTEGRITY_VERIFY) != 0);
}
-static ssize_t integrity_write_store(struct blk_integrity *bi,
- const char *page, size_t count)
+static ssize_t integrity_generate_store(struct blk_integrity *bi,
+ const char *page, size_t count)
{
char *p = (char *) page;
unsigned long val = simple_strtoul(p, &p, 10);
if (val)
- bi->flags |= INTEGRITY_FLAG_WRITE;
+ bi->flags |= BLK_INTEGRITY_GENERATE;
else
- bi->flags &= ~INTEGRITY_FLAG_WRITE;
+ bi->flags &= ~BLK_INTEGRITY_GENERATE;
return count;
}
-static ssize_t integrity_write_show(struct blk_integrity *bi, char *page)
+static ssize_t integrity_generate_show(struct blk_integrity *bi, char *page)
{
- return sprintf(page, "%d\n", (bi->flags & INTEGRITY_FLAG_WRITE) != 0);
+ return sprintf(page, "%d\n", (bi->flags & BLK_INTEGRITY_GENERATE) != 0);
}
static struct integrity_sysfs_entry integrity_format_entry = {
@@ -317,23 +317,23 @@ static struct integrity_sysfs_entry integrity_tag_size_entry = {
.show = integrity_tag_size_show,
};
-static struct integrity_sysfs_entry integrity_read_entry = {
+static struct integrity_sysfs_entry integrity_verify_entry = {
.attr = { .name = "read_verify", .mode = S_IRUGO | S_IWUSR },
- .show = integrity_read_show,
- .store = integrity_read_store,
+ .show = integrity_verify_show,
+ .store = integrity_verify_store,
};
-static struct integrity_sysfs_entry integrity_write_entry = {
+static struct integrity_sysfs_entry integrity_generate_entry = {
.attr = { .name = "write_generate", .mode = S_IRUGO | S_IWUSR },
- .show = integrity_write_show,
- .store = integrity_write_store,
+ .show = integrity_generate_show,
+ .store = integrity_generate_store,
};
static struct attribute *integrity_attrs[] = {
&integrity_format_entry.attr,
&integrity_tag_size_entry.attr,
- &integrity_read_entry.attr,
- &integrity_write_entry.attr,
+ &integrity_verify_entry.attr,
+ &integrity_generate_entry.attr,
NULL,
};
@@ -406,7 +406,7 @@ int blk_integrity_register(struct gendisk *disk, struct blk_integrity *template)
kobject_uevent(&bi->kobj, KOBJ_ADD);
- bi->flags |= INTEGRITY_FLAG_READ | INTEGRITY_FLAG_WRITE;
+ bi->flags |= BLK_INTEGRITY_VERIFY | BLK_INTEGRITY_GENERATE;
bi->interval = queue_logical_block_size(disk->queue);
disk->integrity = bi;
} else
@@ -419,6 +419,7 @@ int blk_integrity_register(struct gendisk *disk, struct blk_integrity *template)
bi->verify_fn = template->verify_fn;
bi->tuple_size = template->tuple_size;
bi->tag_size = template->tag_size;
+ bi->flags |= template->flags;
} else
bi->name = bi_unsupported_name;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 24c1e055b8a7..cf92eb031ae9 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1458,8 +1458,10 @@ static inline uint64_t rq_io_start_time_ns(struct request *req)
#if defined(CONFIG_BLK_DEV_INTEGRITY)
-#define INTEGRITY_FLAG_READ 2 /* verify data integrity on read */
-#define INTEGRITY_FLAG_WRITE 4 /* generate data integrity on write */
+enum blk_integrity_flags {
+ BLK_INTEGRITY_VERIFY = 1 << 0,
+ BLK_INTEGRITY_GENERATE = 1 << 1,
+};
struct blk_integrity_iter {
void *prot_buf;