On Sat, 9 Jan 1999 19:41:36 +0100 (CET), Andrea Arcangeli
<andrea@e-mind.com> said:
> On Sat, 9 Jan 1999, Linus Torvalds wrote:
>> refuse to touch an inode that is busy is a sure way to allow people to
> What do you mean for busy? What about refusing filemap_write_page() in
> filemap_swapout() only if
> !atomic_count(&vma->vm_file->d_entry->d_inode->i_sem.count)?
The problem with that is what happens if we have a large, active
write-mapped file with lots of IO activity on it; we become essentially
unable to swap that file out. That has really nasty VM death
implications for things like databases.
--Stephen
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