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zpool: remove redundant zpool->type string, const-ify zpool_get_type

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Make the return type of zpool_get_type const; the string belongs to the
zpool driver and should not be modified.  Remove the redundant type field
in the struct zpool; it is private to zpool.c and isn't needed since
->driver->type can be used directly.  Add comments indicating strings must
be null-terminated.

Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Streetman 2015-11-06 16:29:18 -08:00 • committed by Linus Torvalds
parent c99b42c352
commit 69e18f4dbe
2 changed files with 9 additions and 7 deletions
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include/linux/zpool.h
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@ -41,7 +41,7 @@ bool zpool_has_pool(char *type);
struct zpool *zpool_create_pool(char *type, char *name,
gfp_t gfp, const struct zpool_ops *ops);
char *zpool_get_type(struct zpool *pool);
const char *zpool_get_type(struct zpool *pool);
void zpool_destroy_pool(struct zpool *pool);