On Wed, Nov 11, 2020 at 02:39:34PM +, Ben Hutchings wrote:
On Wed, 2020-11-11 at 13:44 +0100, Pavel Machek wrote:
Hi!
> Thankfully it's handled by the only caller, btree_write_cache_pages(),
> as later write_one_eb() call will trigger submit_one_bio(). So there
> shouldn't be any problem.
On Wed, 2020-11-11 at 13:44 +0100, Pavel Machek wrote:
> Hi!
>
> > Thankfully it's handled by the only caller, btree_write_cache_pages(),
> > as later write_one_eb() call will trigger submit_one_bio(). So there
> > shouldn't be any problem.
>
> This explains there should not be any problem in
Hi!
> Thankfully it's handled by the only caller, btree_write_cache_pages(),
> as later write_one_eb() call will trigger submit_one_bio(). So there
> shouldn't be any problem.
This explains there should not be any problem in _the
mainline_. AFAICT this talks about this code. Mainline version
From: Qu Wenruo
commit 2e3c25136adfb293d517e17f761d3b8a43a8fc22 upstream.
This function needs some extra checks on locked pages and eb. For error
handling we need to unlock locked pages and the eb.
There is a rare >0 return value branch, where all pages get locked
while write bio is not
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