ext4_double...ite_data_sem(9)

✨ NAME ✨

okay bestie, we're in the Kernel API Manual and this is the page for ext4_double_up_write_data_sem(9) — the header/footer shorten it as ext4_double...ite_data_sem(9), iykyk. 💅

It's literally here to release two inodes' write lock of i_data_sem. no cap, that's the whole vibe.

🌈 SYNOPSIS 🌈

the signature, exact and untouched:

void ext4_double_up_write_data_sem (struct inode *orig_inode , struct inode *donor_inode );

🎀 ARGUMENTS 🎀

• orig_inode — the original inode structure. its lock gets released first. 💖
• donor_inode — the donor inode structure. its lock gets released second. 🫶

and then: release the write lock of i_data_sem for the two inodes (orig and donor). that's the move. ✨

👀 SEE ALSO 👀

• Kernel file ./fs/ext4/move_extent.c
• ext4_double_down_write_data_sem(9)
• ext4_move_extents(9)

okay that's the whole page, mwah 💋 — source/version ./fs/ext4, date October 2026, footer title ext4_double...ite_data_sem(9). periodt. 🫶