From: Mike Snitzer <snitzer@redhat.com>
Date: Mon, 8 Nov 2010 13:39:12 +0000 (+0100)
Subject: block: read i_size with i_size_read()
X-Git-Tag: v2.6.37-rc2~30^2~7
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77304d2abac6101f7249754ffdd4421258877ab0;p=pandora-kernel.git

block: read i_size with i_size_read()

Convert direct reads of an inode's i_size to using i_size_read().

i_size_{read,write} use a seqcount to protect reads from accessing
incomple writes.  Concurrent i_size_write()s require mutual exclussion
to protect the seqcount that is used by i_size_{read,write}.  But
i_size_read() callers do not need to use additional locking.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: NeilBrown <neilb@suse.de>
Acked-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---

Reading git-diff-tree failed