bdev_validate_blocksize(9)

🎀 NAME 🎀

this is the bdev_validate_blocksize(9) page from the Kernel API Manual — yes, section 9 energy, bestie. The whole flex? Check that this block size is acceptable. periodt. 💅

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✨ SYNOPSIS ✨

Here’s the exact signature, no cap:

int bdev_validate_blocksize (struct block_device *bdev , int block_size
);

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🌸 ARGUMENTS 🌸

• bdev — the blockdevice to check. That’s the block device you’re running the vibe check on. 🫶
• block_size — the block size to check. The number you’re like “bestie, is this okay?” about. 💅

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🦋 DESCRIPTION 🦋

This one is for block device users that do not use buffer heads or the block device page cache. For those peeps, it makes sure that this block size can be used with the device. It’s giving compatibility check, not a whole new thing. 😌✨

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💖 RETURN 💖

On success, zero is returned — iconic 0, we love to see it. On failure, you get a negative error code. Not iconic, but informative. 😭

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🫶 SEE ALSO 🫶

Kernel file: ./block/bdev.c. The whole crew is here, and yes you need all of them:

• bdev_freeze(9)
• bdev_thaw(9)
• bdev_deny_freeze(9)
• bdev_allow_freeze(9)
• bd_may_claim(9)
• bd_prepare_to_claim(9)
• bd_finish_claiming(9)
• bd_abort_claiming(9)
• bdev_open(9)
• bdev_yield_claim(9)
• bdev_fput(9)
• lookup_bdev(9)
• bdev_mark_dead(9)

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okay that’s the page! signing off from source ./block, dated October 2026, with Kernel API Manual energy. mwah 💋✨🎀