Thread (12 messages) 12 messages, 3 authors, 2011-07-28

Re: [PATCH] mm: Properly reflect task dirty limits in dirty_exceeded logic

From: Jan Kara <jack@suse.cz>
Date: 2011-07-28 15:31:57

On Wed 27-07-11 22:04:41, Wu Fengguang wrote:
On Tue, Jul 26, 2011 at 09:57:30PM +0800, Jan Kara wrote:
quoted
On iue 26-07-11 12:13:22, Wu Fengguang wrote:
f7d2b1e writeback: account per-bdi accumulated written pages
e98be2d writeback: bdi write bandwidth estimation
00821b0 writeback: show bdi write bandwidth in debugfs
7762741 writeback: consolidate variable names in balance_dirty_pages()
c42843f writeback: introduce smoothed global dirty limit
ffd1f60 writeback: introduce max-pause and pass-good dirty limits
e1cbe23 writeback: trace global_dirty_state
1a12d8b writeback: scale IO chunk size up to half device bandwidth

But why do you think these patches should be merged? f7d2b1e, 7762741 are
probably OK to go but don't have much sense without the rest. The other
patches do not have any Acked-by or Reviewed-by from anyone and I don't
think they are really obvious enough to not deserve some.
Sorry I overlooked the Acked-by/Reviewed-by principle, which is
definitely good practice to follow. However given that Linus has
merged the patches and they do look like pretty safe changes, we may
consider watch and improve the algorithms based on them.
  :-| Well, at least c42843f and 1a12d8b do not look "pretty safe" to me.
But when it already happened, let's work with what we have.

								Honza
-- 
Jan Kara [off-list ref]
SUSE Labs, CR

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