Messages in this thread Patch in this message | | | Date | Tue, 20 Jan 2009 15:09:32 +0800 | From | Coly Li <> | Subject | [PATCH 15/20] fs/reiserfs: return f_fsid for statfs(2), v2 |
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This patch makes reiserfs3 return f_fsid info for statfs(2). By Andreas' suggestion, this patch populates a persistent f_fsid between boots/mounts with help of on-disk uuid record.
Signed-off-by: Coly Li <coly.li@suse.de> Cc: reiserfs-devel@vger.kernel.org --- fs/reiserfs/super.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index f3c820b..cb8e7ee 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -27,6 +27,7 @@ #include <linux/mnt_namespace.h> #include <linux/mount.h> #include <linux/namei.h> +#include <linux/crc32.h>
struct file_system_type reiserfs_fs_type;
@@ -1892,6 +1893,10 @@ static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_bsize = dentry->d_sb->s_blocksize; /* changed to accommodate gcc folks. */ buf->f_type = REISERFS_SUPER_MAGIC; + buf->f_fsid.val[0] = (u32)crc32_le(0, rs->s_uuid, sizeof(rs->s_uuid)/2); + buf->f_fsid.val[1] = (u32)crc32_le(0, rs->s_uuid + sizeof(rs->s_uuid)/2, + sizeof(rs->s_uuid)/2); + return 0; }
-- Coly Li SuSE Labs
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