Re: [patch] truncate inode page sleeps

Ingo Molnar (mingo@chiara.csoma.elte.hu)
Fri, 25 Jun 1999 16:26:04 +0200 (CEST)


On Fri, 25 Jun 1999, Andrea Arcangeli wrote:

> Since truncate_inode_page() can sleep if the page is under I/O, then
> shrink_mmap may recycle the page from the page cache while truncate is
> sleeping. This patch will fix the race.

this should not happen, because when we do the lock_page() we have done a
get_page() - so shrink_mmap() cannot possibly do a remove_inode_page().

if it does then it's a shrink_mmap() bug. Can you see this happen in the
original kernel tree as well?

-- mingo

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