From a02a6eba9999221b27c691330e93bb54e4b45bb0 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Sun, 21 May 2017 00:16:26 +0200
Subject: [PATCH] ubifs: Wire-up statx() support

statx() can report what flags a file has, expose flags that UBIFS
supports. Especially STATX_ATTR_COMPRESSED and STATX_ATTR_ENCRYPTED
can be interesting for userspace.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 fs/ubifs/dir.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 90a3f01c55d1d..417fe0b29f23e 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1644,6 +1644,21 @@ int ubifs_getattr(const struct path *path, struct kstat *stat,
 	struct ubifs_inode *ui = ubifs_inode(inode);
 
 	mutex_lock(&ui->ui_mutex);
+
+	if (ui->flags & UBIFS_APPEND_FL)
+		stat->attributes |= STATX_ATTR_APPEND;
+	if (ui->flags & UBIFS_COMPR_FL)
+		stat->attributes |= STATX_ATTR_COMPRESSED;
+	if (ui->flags & UBIFS_CRYPT_FL)
+		stat->attributes |= STATX_ATTR_ENCRYPTED;
+	if (ui->flags & UBIFS_IMMUTABLE_FL)
+		stat->attributes |= STATX_ATTR_IMMUTABLE;
+
+	stat->attributes_mask |= (STATX_ATTR_APPEND |
+				STATX_ATTR_COMPRESSED |
+				STATX_ATTR_ENCRYPTED |
+				STATX_ATTR_IMMUTABLE);
+
 	generic_fillattr(inode, stat);
 	stat->blksize = UBIFS_BLOCK_SIZE;
 	stat->size = ui->ui_size;
-- 
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