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Message-ID: <497578AC.9060806@suse.de> Date: Tue, 20 Jan 2009 15:09:32 +0800 From: Coly Li <coly.li@...e.de> To: linux-kernel@...r.kernel.org Cc: reiserfs-devel@...r.kernel.org Subject: [PATCH 15/20] fs/reiserfs: return f_fsid for statfs(2), v2 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@...e.de> Cc: reiserfs-devel@...r.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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