Btrfs: fix max_inline mount option

Currently, the only mount option for max_inline that has any effect is
max_inline=0.  Any other value that is supplied to max_inline will be
adjusted to a minimum of 4k.  Since max_inline has an effective maximum
of ~3900 bytes due to page size limitations, the current behaviour
only has meaning for max_inline=0.

This patch will allow the the max_inline mount option to accept non-zero
values as indicated in the documentation.
Signed-off-by: NMitch Harder <mitch.harder@sabayonlinux.org>
Signed-off-by: NChris Mason <clm@fb.com>

fs/btrfs/super.c

@@ -566,7 +566,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
 				kfree(num);
 
 				if (info->max_inline) {
-					info->max_inline = max_t(u64,
+					info->max_inline = min_t(u64,
 						info->max_inline,
 						root->sectorsize);
 				}