ea_alloc_blk(9)

💅 ea_alloc_blk — the kernel API manual, but make it make sense

okay so bestie, welcome to the ea_alloc_blk(9) page 💖 this one lives in the Kernel API Manual, and it's literally all about grabbing a fresh new block for extended attributes. short page, big slay, let's go ✨

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🌸 NAME 🌸

ea_alloc_blk — allocates a new block for extended attributes.

like, that's the whole vibe. it allocates. a block. for xattrs. periodt 💅

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✨ SYNOPSIS ✨

int ea_alloc_blk (struct gfs2_inode *ip , struct buffer_head **bhp );

that's it, that's the signature 🎀 copy it exactly, no cap.

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🦋 ARGUMENTS 🦋

• ip — a pointer to the inode that's getting extended attributes. it's giving "the main character who's about to have a glow-up" 👑
• bhp — pointer to pointer to a struct buffer_head. yes, a double pointer — pointer-to-pointer energy fr fr 🙈

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🔥 RETURN 🔥

errno

that's the return value, bestie. just errno. not me expecting more and getting exactly one word 😭 that's what the original says, so that's what we're serving.

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🌈 SEE ALSO 🌈

lowkey the best part, the whole friend group 🫶:

• Kernel file ./fs/gfs2/xattr.c
• gfs2_listxattr(9)
• gfs2_iter_unstuffed(9)
• __gfs2_xattr_get(9)
• ea_write(9)
• gfs2_xattr_remove(9)
• __gfs2_xattr_set(9)
• gfs2_ea_dealloc(9)

go read those too, iykyk 💜

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ngl this one's a short read — but every word counts, so don't skip the pointer-to-pointer, it's literally the icon of the page ⭐

okay that's the whole page!! big kiss, this one came from ./fs/gfs2 and it's dated October 2026 — mark your calendars bestie, future vibes only 🗓️💖✨