[PATCH 4/7] fuse: implement file attributes mask for statx

["Darrick J. Wong" <djwong@xxxxxxxxxx>]

From: Darrick J. Wong <djwong@xxxxxxxxxx>

Actually copy the attributes/attributes_mask from userspace.

Signed-off-by: "Darrick J. Wong" <djwong@xxxxxxxxxx>
---
 fs/fuse/fuse_i.h |    4 ++++
 fs/fuse/dir.c    |    4 ++++
 fs/fuse/inode.c  |    3 +++
 3 files changed, 11 insertions(+)


diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 2b5d56e3cb4eaf..bb1fdae0bbc906 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -140,6 +140,10 @@ struct fuse_inode {
 	/** Version of last attribute change */
 	u64 attr_version;
 
+	/** statx file attributes */
+	u64 statx_attributes;
+	u64 statx_attributes_mask;
+
 	union {
 		/* read/write io cache (regular file only) */
 		struct {
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 2d817d7cab2649..2e4d1131ab8cbe 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1278,6 +1278,8 @@ static int fuse_do_statx(struct mnt_idmap *idmap, struct inode *inode,
 		stat->result_mask = sx->mask & (STATX_BASIC_STATS | STATX_BTIME);
 		stat->btime.tv_sec = sx->btime.tv_sec;
 		stat->btime.tv_nsec = min_t(u32, sx->btime.tv_nsec, NSEC_PER_SEC - 1);
+		stat->attributes = sx->attributes;
+		stat->attributes_mask = sx->attributes_mask;
 		fuse_fillattr(idmap, inode, &attr, stat);
 		stat->result_mask |= STATX_TYPE;
 	}
@@ -1381,6 +1383,8 @@ static int fuse_update_get_attr(struct mnt_idmap *idmap, struct inode *inode,
 			stat->btime = fi->i_btime;
 			stat->result_mask |= STATX_BTIME;
 		}
+		stat->attributes = fi->statx_attributes;
+		stat->attributes_mask = fi->statx_attributes_mask;
 	}
 
 	return err;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index b3b0c0f5598b4a..463879830ecf34 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -287,6 +287,9 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
 			fi->i_btime.tv_sec = sx->btime.tv_sec;
 			fi->i_btime.tv_nsec = sx->btime.tv_nsec;
 		}
+
+		fi->statx_attributes = sx->attributes;
+		fi->statx_attributes_mask = sx->attributes_mask;
 	}
 
 	if (attr->blksize != 0)