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| author | Ricardo B. Marliere <ricardo@marliere.net> | 2024-03-05 20:32:16 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-03-06 16:29:20 +0100 |
| commit | f8c7511db009d42e2c24e48eeb04e3f1b67ab209 (patch) | |
| tree | 3bfc88381d9cdcdb925591d47bf1d086629e2395 /drivers/base/base.h | |
| parent | Merge tag 'md-6.9-20240305' of https://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
| download | linux-f8c7511db009d42e2c24e48eeb04e3f1b67ab209.tar.xz linux-f8c7511db009d42e2c24e48eeb04e3f1b67ab209.zip | |
block: make block_class constant
Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the block_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240305-class_cleanup-block-v1-1-130bb27b9c72@marliere.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/base/base.h')
| -rw-r--r-- | drivers/base/base.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/base.h b/drivers/base/base.h index eb4c0ace9242..0738ccad08b2 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -207,7 +207,7 @@ static inline int devtmpfs_init(void) { return 0; } #endif #ifdef CONFIG_BLOCK -extern struct class block_class; +extern const struct class block_class; static inline bool is_blockdev(struct device *dev) { return dev->class == &block_class; |