linux-kernel - [PATCH] hfsplus: report create

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Date:   Sat, 17 Apr 2021 01:21:47 +0800
From:   Chung-Chiang Cheng <shepjeng@...il.com>
To:     christian.brauner@...ntu.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, jamorris@...ux.microsoft.com,
        axboe@...nel.dk
Cc:     cccheng@...ology.com
Subject: [PATCH] hfsplus: report create_date to kstat.btime

The create_date field of inode in hfsplus is corresponding to kstat.btime
and could be reported in statx.

Signed-off-by: Chung-Chiang Cheng <cccheng@...ology.com>
---
 fs/hfsplus/inode.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 078c5c8a5156..aab3388a0fd7 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -278,6 +278,11 @@ int hfsplus_getattr(struct user_namespace *mnt_userns, const struct path *path,
 	struct inode *inode = d_inode(path->dentry);
 	struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
 
+	if (request_mask & STATX_BTIME) {
+		stat->result_mask |= STATX_BTIME;
+		stat->btime = hfsp_mt2ut(hip->create_date);
+	}
+
 	if (inode->i_flags & S_APPEND)
 		stat->attributes |= STATX_ATTR_APPEND;
 	if (inode->i_flags & S_IMMUTABLE)
-- 
2.25.1