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-rw-r--r--include/linux/fs.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index aeb9dc3082d5..4b59270ded46 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1676,6 +1676,11 @@ struct super_operations {
#define S_IMA 1024 /* Inode has an associated IMA struct */
#define S_AUTOMOUNT 2048 /* Automount/referral quasi-directory */
#define S_NOSEC 4096 /* no suid or xattr security attributes */
+#ifdef CONFIG_FS_XIP
+#define S_DAX 8192 /* Direct Access, avoiding the page cache */
+#else
+#define S_DAX 0 /* Make all the DAX code disappear */
+#endif
/*
* Note that nosuid etc flags are inode-specific: setting some file-system
@@ -1713,6 +1718,7 @@ struct super_operations {
#define IS_IMA(inode) ((inode)->i_flags & S_IMA)
#define IS_AUTOMOUNT(inode) ((inode)->i_flags & S_AUTOMOUNT)
#define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC)
+#define IS_DAX(inode) ((inode)->i_flags & S_DAX)
#define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \
(inode)->i_rdev == WHITEOUT_DEV)