blkdev_issue_zeroout(9)

✨ blkdev_issue_zeroout(9) ✨

okay so bestie, welcome to the Kernel API Manual page for blkdev_issue_zeroout — like, this is the one that literally zero-fills a block range for you. no cap, it's a whole vibe. 💅

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🎀 NAME 🎀

blkdev_issue_zeroout — zero-fill a block range 🫶

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🌸 SYNOPSIS 🌸

int blkdev_issue_zeroout (struct block_device *bdev , sector_t sector ,
sector_t nr_sects , gfp_t gfp_mask , unsigned flags );

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💖 ARGUMENTS 💖

• bdev — the blockdev you're writing to, your main character device 🦋
• sector — the start sector, like where the whole thing begins ✨
• nr_sects — number of sectors to write (the how-much energy) 🔥
• gfp_mask — memory allocation flags (for bio_alloc), iykyk 🧚
• flags — controls detailed behavior, the little switches that change everything 👑

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🦋 DESCRIPTION 🦋

Zero-fill a block range, bestie! You can do it either by using hardware offload or by explicitly writing zeroes to the device — both paths are valid, it's giving flexible. 🌈

ngl, if you wanna know the valid values for flags, go check __blkdev_issue_zeroout — it's literally where the tea is. ☕

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💜 SEE ALSO 💜

• Kernel file ./block/blk-lib.c
• blkdev_issue_discard(9)
• __blkdev_issue_zeroout(9)

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and that's the whole page, periodt 💅💖 — this little gem lives in ./block and the source/version + date sitch is October 2026, so yeah, bookmark it and slay your block zeroing bestie 🎀✨