From: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
Subject: [RFC][STEP 1][PATCH 1/4] nilfs-utils: add xattr related declarations
This patch adds xattr related declarations.
Signed-off-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
CC: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
---
include/nilfs2_fs.h | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/include/nilfs2_fs.h b/include/nilfs2_fs.h
index e674f44..fa05c05 100644
--- a/include/nilfs2_fs.h
+++ b/include/nilfs2_fs.h
@@ -92,6 +92,7 @@ struct nilfs_inode {
* @sr_dat: DAT file inode
* @sr_cpfile: checkpoint file inode
* @sr_sufile: segment usage file inode
+ * @sr_xafile: extended attributes file inode
*/
struct nilfs_super_root {
__le32 sr_sum;
@@ -101,6 +102,7 @@ struct nilfs_super_root {
struct nilfs_inode sr_dat;
struct nilfs_inode sr_cpfile;
struct nilfs_inode sr_sufile;
+ struct nilfs_inode sr_xafile;
};
#define NILFS_SR_MDT_OFFSET(inode_size, i) \
@@ -219,10 +221,18 @@ struct nilfs_super_block {
* If there is a bit set in the incompatible feature set that the kernel
* doesn't know about, it should refuse to mount the filesystem.
*/
+#define NILFS_FEATURE_COMPAT_INIT_XAFILE 0x00000001ULL
+
#define NILFS_FEATURE_COMPAT_RO_BLOCK_COUNT 0x00000001ULL
+#define NILFS_FEATURE_COMPAT_RO_XAFILE 0x00000002ULL
+
+#define NILFS_FEATURE_COMPAT_SUPP \
+ (NILFS_FEATURE_COMPAT_INIT_XAFILE)
+
+#define NILFS_FEATURE_COMPAT_RO_SUPP \
+ (NILFS_FEATURE_COMPAT_RO_BLOCK_COUNT | \
+ NILFS_FEATURE_COMPAT_RO_XAFILE)
-#define NILFS_FEATURE_COMPAT_SUPP 0ULL
-#define NILFS_FEATURE_COMPAT_RO_SUPP NILFS_FEATURE_COMPAT_RO_BLOCK_COUNT
#define NILFS_FEATURE_INCOMPAT_SUPP 0ULL
/*
@@ -240,7 +250,7 @@ struct nilfs_super_block {
#define NILFS_SUFILE_INO 5 /* segment usage file */
#define NILFS_IFILE_INO 6 /* ifile */
#define NILFS_ATIME_INO 7 /* Atime file (reserved) */
-#define NILFS_XATTR_INO 8 /* Xattribute file (reserved) */
+#define NILFS_XATTR_INO 8 /* Xattribute file */
#define NILFS_SKETCH_INO 10 /* Sketch file */
#define NILFS_USER_INO 11 /* Fisrt user's file inode number */
--
1.7.9.5
--
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