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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-12-13 17:11:13 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-12-13 11:29:16 -0700 |
| commit | 0ba4566cd8a4e645b542e6ddbe3dd26c85ad2408 (patch) | |
| tree | ac4d2bf59d1aa16eb250d23fc2f241a7a866b7c3 /block/bdev.c | |
| parent | 17f81f9d4b41d57e474975c3a5ca2a2c4c01e2ec (diff) | |
| download | lwn-0ba4566cd8a4e645b542e6ddbe3dd26c85ad2408.tar.gz lwn-0ba4566cd8a4e645b542e6ddbe3dd26c85ad2408.zip | |
bdev: Improve lookup_bdev documentation
Add a Context section and rewrite the rest to be clearer.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Link: https://lore.kernel.org/r/20211213171113.3097631-1-willy@infradead.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bdev.c')
| -rw-r--r-- | block/bdev.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/block/bdev.c b/block/bdev.c index 587645231d60..8bf93a19041b 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -955,15 +955,15 @@ void blkdev_put(struct block_device *bdev, fmode_t mode) EXPORT_SYMBOL(blkdev_put); /** - * lookup_bdev - lookup a struct block_device by name - * @pathname: special file representing the block device - * @dev: return value of the block device's dev_t + * lookup_bdev() - Look up a struct block_device by name. + * @pathname: Name of the block device in the filesystem. + * @dev: Pointer to the block device's dev_t, if found. * * Lookup the block device's dev_t at @pathname in the current - * namespace if possible and return it by @dev. + * namespace if possible and return it in @dev. * - * RETURNS: - * 0 if succeeded, errno otherwise. + * Context: May sleep. + * Return: 0 if succeeded, negative errno otherwise. */ int lookup_bdev(const char *pathname, dev_t *dev) { |