scan_for_free_cb(9)

✨ scan_for_free_cb(9) ✨

okay so bestie, we're diving into the scan_for_free_cb(9) manual page from the Kernel API Manual 💅 this is a UBIFS callback and it's lowkey iconic, so let's get into it 🫶

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🌸 NAME 🌸

scan_for_free_cb — the free space scan callback, periodt.

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🎀 SYNOPSIS 🎀

int scan_for_free_cb (struct ubifs_info *c , const struct ubifs_lprops
*lprops , int in_tree , void *arg );

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🦋 ARGUMENTS 🦋

• c — the UBIFS file-system description object 🗂️
• lprops — the LEB properties we're scanning, bestie
• in_tree — whether the LEB properties are in main memory or not 👀
• arg — info passed to and from the caller of the scan, iykyk

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🔥 DESCRIPTION 🔥

This function returns a code that tells you what the scan should do next. It's giving "choose your own adventure" ngl:

• LPT_SCAN_CONTINUE — the scan keeps going, no cap 🏃‍♀️
• LPT_SCAN_ADD — the LEB properties should be added to the tree in main memory 🌳
• LPT_SCAN_STOP — the scan stops, that's a wrap 💀

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👑 SEE ALSO 👑

Kernel file ./fs/ubifs/find.c — plus these absolute legends:

• struct scan_data(9)
• valuable(9)
• scan_for_dirty_cb(9)
• scan_for_dirty(9)
• ubifs_find_dirty_leb(9)
• do_find_free_space(9)
• ubifs_find_free_space(9)
• scan_for_idx_cb(9)
• scan_for_leb_for_idx(9)
• ubifs_find_free_leb_for_idx(9)
• ubifs_save_dirty_idx_lnums(9)
• scan_dirty_idx_cb(9)
• find_dirty_idx_leb(9)
• get_idx_gc_leb(9)
• find_dirtiest_idx_leb(9)
• ubifs_find_dirty_idx_leb(9)

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💖 that's the whole page, bestie — go forth and scan for free space 💖

this one lives in ./fs/ubifs, straight from October 2026, mwah 💋✨