gfs2_meta_read(9)

💖 gfs2_meta_read(9) — like, the Kernel API Manual girlie is here to explain 💖

Hiii bestie!! Okay so this one is from the Kernel API Manual, and it's literally the function that goes and gets a block off the disk for you. It's giving "fetch" but make it filesystem. 🦋

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✨ NAME ✨

gfs2_meta_read — read a block from disk 📀✨

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🎀 SYNOPSIS 🎀

int gfs2_meta_read (struct gfs2_glock *gl , u64 blkno , int flags , int
rahead , struct buffer_head **bhp );

No cap, that's the whole signature. Five args, one int coming back at you. 💅

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🌸 ARGUMENTS 🌸

• gl — the glock covering the block 👑 (yes, glock, not the other thing, bestie, this is kernel code)
• blkno — the block number, like the address of the block you want 🏠
• flags — flags. that's it. that's the whole description. flags. 🙈
• rahead — do read-ahead, i.e. peek ahead so future-you isn't waiting ⚡
• bhp — the place where the buffer is returned, and it's NULL on failure 😭 so pls check it

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🔥 RETURN 🔥

errno — that's the vibe check you get back. ⭐

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🫶 SEE ALSO 🫶

Kernel file ./fs/gfs2/meta_io.c plus the whole friend group:

• gfs2_getbuf(9)
• gfs2_meta_new(9)
• gfs2_meta_wait(9)
• gfs2_ail1_wipe(9)
• gfs2_journal_wipe(9)
• gfs2_meta_buffer(9)
• gfs2_meta_ra(9)

iykyk 💜

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okay that's the whole page bestie, you ate that 🎀

this lil number lives in ./fs/gfs2, dated October 2026, and yes it's still signed gfs2_meta_read(9) at the bottom — periodt 💅✨