linux-ext4 - [PATCH 0/3] Rewrite ext4_page

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Date:	Wed, 11 May 2011 00:29:31 +0200
From:	Jan Kara <jack@...e.cz>
To:	Ted Tso <tytso@....edu>
Cc:	linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCH 0/3] Rewrite ext4_page_mkwrite, fix fs freezing

  Hi,

  following three patches reimplement ext4_page_mkwrite() so that it returns
locked pages (which is necessary for stable pages work and also for fixing of
freezing code). As a bonus we also avoid taking i_alloc_sem as it's not
necessary and use generic block_page_mkwrite() helper. The common delalloc
path should be more straightforward now.

The last patch in the series blocks mmaped writes on frozen filesystem which
is simple to do now.

I've tested these patches by xfstests and also running fsx-linux for all
modes - delalloc, nodelalloc (data=writeback), nodelalloc (data=ordered),
nodelalloc (data=journal).

								Honza
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