ubifs_write_rcvrd_mst_node(9)

💅 ubifs_write_rcvrd_mst_node(9) — the Kernel API Manual page your group chat has been waiting for

okay so this is a page from the Kernel API Manual, and it's about ubifs_write_rcvrd_mst_node — yes that's a whole mouthful, we're gonna get through it together bestie 🫶

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✨ NAME ✨

ubifs_write_rcvrd_mst_node — write the recovered master node. that's it. that's the whole job. 💖

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🌸 SYNOPSIS 🌸

int ubifs_write_rcvrd_mst_node (struct ubifs_info *c );

literally one argument, one int coming back atcha. clean. minimal. iconic. ✨

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🎀 ARGUMENTS 🎀

• c — the UBIFS file-system description object. you know, the whole vibe of the filesystem, bundled up so this function has something to work with 💅

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🦋 DESCRIPTION 🦋

okay so picture this: you mounted the filesystem read-only, right? and during that mounting there was a master node that got recovered. yes. recovered. it's sitting there. and now you're remounting rw (read-write, bestie, keep up 🏃‍♀️), which means that recovered master node has got to be written for real for real.

that's what this function does. it writes the master node that was recovered during mounting in read-only mode and must now be written because we are remounting rw. no cap, that's the entire plot 💀

and the tea on the return value: this function returns 0 on success and a negative error code on failure. so if you get anything less than zero, something went sideways and you should probably look at it 👀

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🔥 SEE ALSO 🔥

so there's this kernel file, ./fs/ubifs/recovery.c, and it's basically the whole friend group. here's everyone:

• is_empty(9)
• first_non_ff(9)
• get_master_node(9)
• write_rcvrd_mst_node(9)
• ubifs_recover_master_node(9)
• is_last_write(9)
• clean_buf(9)
• no_more_nodes(9)
• fix_unclean_leb(9)
• drop_last_group(9)
• drop_last_node(9)
• ubifs_recover_leb(9)
• get_cs_sqnum(9)
• ubifs_recover_log_leb(9)
• recover_head(9)
• ubifs_recover_inl_heads(9)
• clean_an_unclean_leb(9)
• ubifs_clean_lebs(9)
• grab_empty_leb(9)
• ubifs_rcvry_gc_commit(9)
• struct size_entry(9)
• add_ino(9)
• find_ino(9)
• remove_ino(9)
• ubifs_destroy_size_tree(9)
• ubifs_recover_size_accum(9)
• fix_size_in_place(9)
• inode_fix_size(9)
• ubifs_recover_size(9)

all of them, every single one, no skips, because we don't do half-finished reading lists in this house 🧚

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okay and before you close the tab: this page lives in ./fs/ubifs, it's October 2026 energy, and it came to you courtesy of the Kernel API Manual. mwah 💋 stay slay, keep your error codes negative, and go read the source — it's giving main character energy fr fr 💜