From: Zach Brown 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: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=221b831835421f9451182611fa25fa60f440662f;p=~emulex%2Finfiniband.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 --- diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 54f03354bed..1ad08e4e4a1 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -29,7 +29,8 @@ sizeof(struct btrfs_item) * 2) / \ size) - 1)) -#define MAX_CSUM_ITEMS(r, size) (min(__MAX_CSUM_ITEMS(r, size), PAGE_CACHE_SIZE)) +#define MAX_CSUM_ITEMS(r, size) (min_t(u32, __MAX_CSUM_ITEMS(r, size), \ + PAGE_CACHE_SIZE)) #define MAX_ORDERED_SUM_BYTES(r) ((PAGE_SIZE - \ sizeof(struct btrfs_ordered_sum)) / \