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Message-ID: <20120926165655.GD18983@thunk.org> Date: Wed, 26 Sep 2012 12:56:55 -0400 From: Theodore Ts'o <tytso@....edu> To: Dmitry Monakhov <dmonakhov@...nvz.org> Cc: linux-ext4@...r.kernel.org, a-fujita@...jp.nec.com Subject: Re: [PATCH 4/4] ext4: reimplement uninit extent optimization for move_extent_per_page V2 On Mon, Sep 24, 2012 at 04:23:54PM +0400, Dmitry Monakhov wrote: > Uninitialized extent may became initialized(parallel writeback task) > at any moment after we drop i_data_sem, so we have to recheck extent's > state after we hold page's lock and i_data_sem. > > If we about to change page's mapping we must hold page's lock in order to > serialize other users. > Changes from V1 in response to Akira's comments: > - fix last block mistype > - Rerutn inital error code > > Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org> Thanks, applied. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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