Andreas Kling 98c230b370 Kernel/Ext2FS: Uncache unknown inode indices when flushing writes ...

Ext2FS::get_inode() will remember unknown inode indices that it has
been asked about and put them into the inode cache as null inodes.

flush_writes() was not null-checking these while iterating, which
was a bug I finally managed to hit.

Flushing also seemed like a good time to drop unknown inodes from
the cache, since there's no good reason to hold to them indefinitely.

2021-07-16 02:40:53 +02:00

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