diff options
| author | Brian Behlendorf <[email protected]> | 2022-05-27 17:51:55 +0000 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2022-05-31 12:04:17 -0700 |
| commit | 5e4aedaca7cee981ed21ac856fd27b4682bb7888 (patch) | |
| tree | 23c0d38859f58856a4f763c1b4bb49ec5a8c0cb6 /include | |
| parent | 5f264996f4dc2d5279afe96698688a20c281c473 (diff) | |
Linux 5.19 compat: bdev_max_discard_sectors()
Linux 5.19 commit torvalds/linux@70200574cc removed the
blk_queue_discard() helper function. The preferred interface
is to now use the bdev_max_discard_sectors() function to check
for discard support.
Reviewed-by: Tony Hutter <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #13515
Diffstat (limited to 'include')
| -rw-r--r-- | include/os/linux/kernel/linux/blkdev_compat.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/os/linux/kernel/linux/blkdev_compat.h b/include/os/linux/kernel/linux/blkdev_compat.h index 9fa8884bb..084d48c87 100644 --- a/include/os/linux/kernel/linux/blkdev_compat.h +++ b/include/os/linux/kernel/linux/blkdev_compat.h @@ -495,6 +495,25 @@ blk_queue_discard_granularity(struct request_queue *q, unsigned int dg) } /* + * 5.19 API, + * bdev_max_discard_sectors() + * + * 2.6.32 API, + * blk_queue_discard() + */ +static inline boolean_t +bdev_discard_supported(struct block_device *bdev) +{ +#if defined(HAVE_BDEV_MAX_DISCARD_SECTORS) + return (!!bdev_max_discard_sectors(bdev)); +#elif defined(HAVE_BLK_QUEUE_DISCARD) + return (!!blk_queue_discard(bdev_get_queue(bdev))); +#else +#error "Unsupported kernel" +#endif +} + +/* * 4.8 API, * blk_queue_secure_erase() * |