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Diffstat (limited to 'fs/stat.c')
-rw-r--r--fs/stat.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/stat.c b/fs/stat.c
index a7930d744483..ef50573c72a2 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -5,6 +5,7 @@
* Copyright (C) 1991, 1992 Linus Torvalds
*/
+#include <linux/blkdev.h>
#include <linux/export.h>
#include <linux/mm.h>
#include <linux/errno.h>
@@ -230,11 +231,22 @@ retry:
goto out;
error = vfs_getattr(&path, stat, request_mask, flags);
+
stat->mnt_id = real_mount(path.mnt)->mnt_id;
stat->result_mask |= STATX_MNT_ID;
+
if (path.mnt->mnt_root == path.dentry)
stat->attributes |= STATX_ATTR_MOUNT_ROOT;
stat->attributes_mask |= STATX_ATTR_MOUNT_ROOT;
+
+ /* Handle STATX_DIOALIGN for block devices. */
+ if (request_mask & STATX_DIOALIGN) {
+ struct inode *inode = d_backing_inode(path.dentry);
+
+ if (S_ISBLK(inode->i_mode))
+ bdev_statx_dioalign(inode, stat);
+ }
+
path_put(&path);
if (retry_estale(error, lookup_flags)) {
lookup_flags |= LOOKUP_REVAL;