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fat: new inline functions to determine the FAT variant (32, 16 or 12)

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This patch introduces 3 new inline functions - is_fat12, is_fat16 and
is_fat32, and replaces every occurrence in the code in which the FS
variant (whether this is FAT12, FAT16 or FAT32) was previously checked
using msdos_sb_info->fat_bits.

Link: http://lkml.kernel.org/r/1544990640-11604-4-git-send-email-carmeli.tamir@gmail.com
Signed-off-by: Carmeli Tamir <carmeli.tamir@gmail.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Carmeli Tamir
2019-01-03 15:28:00 -08:00
committed by Linus Torvalds
parent d19dc01618
commit 306790f75a
6 changed files with 39 additions and 22 deletions
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2
fs/fat/misc.c
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@@ -64,7 +64,7 @@ int fat_clusters_flush(struct super_block *sb)
struct buffer_head *bh;
struct fat_boot_fsinfo *fsinfo;
if (sbi->fat_bits != 32)
if (!is_fat32(sbi))
return 0;
bh = sb_bread(sb, sbi->fsinfo_sector);