From: Zach Brown <zab@zabbo.net>
Date: Thu, 20 Sep 2012 20:33:00 +0000 (-0600)
Subject: btrfs: fix min csum item size warnings in 32bit
X-Git-Tag: v3.7-rc1~71^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=221b831835421f9451182611fa25fa60f440662f;p=pandora-kernel.git

btrfs: fix min csum item size warnings in 32bit

commit 7ca4be45a0255ac8f08c05491c6add2dd87dd4f8 limited csum items to
PAGE_CACHE_SIZE.  It used min() with incompatible types in 32bit which
generates warnings:

fs/btrfs/file-item.c: In function ‘btrfs_csum_file_blocks’:
fs/btrfs/file-item.c:717: warning: comparison of distinct pointer types lacks a cast

This uses min_t(u32,) to fix the warnings.  u32 seemed reasonable
because btrfs_root->leafsize is u32 and PAGE_CACHE_SIZE is unsigned
long.

Signed-off-by: Zach Brown <zab@zabbo.net>
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