Messages in this thread | | | Date | Sun, 10 Oct 1999 19:23:11 +0200 (CEST) | From | Mikulas Patocka <> | Subject | Re: [patch] [possible race in ext2] Re: how to write get_block? |
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On Sat, 9 Oct 1999, Andrea Arcangeli wrote:
> On Fri, 8 Oct 1999, Mikulas Patocka wrote: > > >Here goes quick'n'dirty patch. It does bforget(). It should prevent file > >corruption. > > wrong patch. bforget give you no guarantee at all. bfoget always fallback > to brelse if necessary. > > What I said about bforget in my old email is still true. The _only_ reason > for using bforget instead of brelse is to get buffer performances (that in > 2.3.x are not so interesting as in 2.2.x as in 2.3.x flushpage is just > doing the interesting stuff with the real data).
Yes, there is race when bforget is called while buffer is being flushed. mark_buffer_clean();wait_on_buffer(); should be used.
Mikulas Patocka
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