[JFFS2] Improve failure mode if inode checking leaves unchecked space.
We should never find the unchecked size is non-zero after we've finished checking all inodes. If it happens, used to BUG(), leaving the alloc_sem held and deadlocking. Instead, just return -ENOSPC after complaining. The GC thread will die, but read-only operation should be able to continue and the file system should be unmountable. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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566865a2a4
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44b998e1eb
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@ -144,7 +144,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
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c->unchecked_size);
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jffs2_dbg_dump_block_lists_nolock(c);
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spin_unlock(&c->erase_completion_lock);
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BUG();
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up(&c->alloc_sem);
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return -ENOSPC;
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}
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spin_unlock(&c->erase_completion_lock);
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