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[RFC,1/8] fs: Add FS_XFLAG_ATOMICWRITES flag

Message ID 555cc3e262efa77ee5648196362f415a1efc018d.1709361537.git.ritesh.list@gmail.com (mailing list archive)
State New, archived
Headers show
Series ext4: Add direct-io atomic write support using fsawu | expand

Commit Message

Ritesh Harjani (IBM) March 2, 2024, 7:41 a.m. UTC 
From: John Garry <john.g.garry@oracle.com>

Add a flag indicating that a regular file is enabled for atomic writes.

Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
---
 include/uapi/linux/fs.h | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index a0975ae81e64..b5b4e1db9576 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -140,6 +140,7 @@  struct fsxattr {
 #define FS_XFLAG_FILESTREAM	0x00004000	/* use filestream allocator */
 #define FS_XFLAG_DAX		0x00008000	/* use DAX for IO */
 #define FS_XFLAG_COWEXTSIZE	0x00010000	/* CoW extent size allocator hint */
+#define FS_XFLAG_ATOMICWRITES	0x00020000	/* atomic writes enabled */
 #define FS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this	*/
 
 /* the read-only stuff doesn't really belong here, but any other place is