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Commit aac49b75 authored by Coly Li's avatar Coly Li Committed by Linus Torvalds
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fs/fat: return f_fsid for statfs(2) 



Make fat return f_fsid info for statfs(2).

Signed-off-by: default avatarColy Li <coly.li@suse.de>
Acked-by: default avatarOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 514c91a9

fs/fat/inode.c

+5 −1
Original line number Diff line number Diff line
@@ -523,7 +523,9 @@ static int fat_remount(struct super_block *sb, int *flags, char *data) 


static int fat_statfs(struct dentry *dentry, struct kstatfs *buf)

{

	struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb);

	struct super_block *sb = dentry->d_sb;

	struct msdos_sb_info *sbi = MSDOS_SB(sb);

	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);



	/* If the count of free cluster is still unknown, counts it here. */

	if (sbi->free_clusters == -1 || !sbi->free_clus_valid) {
@@ -537,6 +539,8 @@ static int fat_statfs(struct dentry *dentry, struct kstatfs *buf) 
	buf->f_blocks = sbi->max_cluster - FAT_START_ENT;

	buf->f_bfree = sbi->free_clusters;

	buf->f_bavail = sbi->free_clusters;

	buf->f_fsid.val[0] = (u32)id;

	buf->f_fsid.val[1] = (u32)(id >> 32);

	buf->f_namelen = sbi->options.isvfat ? 260 : 12;



	return 0;