It could cause issues with dircache not being able to expand itself to fit more files. The size is zeroed if it gets overstuffed (more than 3/4 of the reserved is used) or wasn't able to finish to establish a new set point so it can scan later without blocking.
Mike On Monday, February 27, 2017 8:06 PM, Boris Gjenero via rockbox-dev <rockbox-dev@cool.haxx.se> wrote: Hello everyone, Since upgrading to a 120 GB hard drive, dircache builds take longer. It's a bit annoying to have to wait for them with "Scanning disk..." displayed. It seems this happens because in tree_flush() in apps/tree.c, the saved dircache size is updated by "global_status.dircache_size = info.last_size;", and info.last_size is not set until the scanning is finished. It seems I can get around this by not updating the size if info.last_size is zero. This is the change I made: https://github.com/dreamlayers/rockbox/commit/a02d64799f16598eb5db9c26a799cb123b7b8f53 Maybe I should have just put that up for review on Gerrit, but I don't know enough about dircache to know if there is some potential problem, so I'm first asking here. (This commit is on a personal branch with other modifications, which is currently installed on my 5G iPod. It's not based on the latest master because I had some responsiveness problems with a newer version.) Best regards, Boris