From mboxrd@z Thu Jan 1 00:00:00 1970 From: Namjae Jeon Subject: [PATCH v2 2/3] fat: notify when discard is not supported Date: Sat, 3 Nov 2012 15:28:39 +0900 Message-ID: <1351924119-14284-1-git-send-email-linkinjeon@gmail.com> Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Namjae Jeon , Amit Sahrawat To: hirofumi@mail.parknet.co.jp, akpm@linux-foundation.org Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org FAT also notify warning message about discard support as ext4(http://patchwork.ozlabs.org/patch/192668/) Signed-off-by: Namjae Jeon Signed-off-by: Amit Sahrawat --- fs/fat/inode.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 8d79657..3b48bab 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include "fat.h" @@ -1446,6 +1447,14 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat, goto out_fail; } + if (sbi->options.discard) { + struct request_queue *q = bdev_get_queue(sb->s_bdev); + if (!blk_queue_discard(q)) + fat_msg(sb, KERN_WARNING, + "mounting with \"discard\" option, but " + "the device does not support discard"); + } + return 0; out_invalid: -- 1.7.9.5