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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2016-08-02 14:05:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 19:35:21 -0400
commite63e88bc53bac7e4c3f592f8126c51a7569be673 (patch)
tree6e5855b0b227b520f1590afec9def6e5c47b4bee /fs/nilfs2
parent4ce5c3426cbe9193f82345fb103e17dc3335eb4f (diff)
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nilfs2: move ioctl interface and disk layout to uapi separately
The header file "include/linux/nilfs2_fs.h" is composed of parts for ioctl and disk format, and both are intended to be shared with user space programs. This moves them to the uapi directory "include/uapi/linux" splitting the file to "nilfs2_api.h" and "nilfs2_ondisk.h". The following minor changes are accompanied by this migration: - nilfs_direct_node struct in nilfs2/direct.h is converged to nilfs2_ondisk.h because it's an on-disk structure. - inline functions nilfs_rec_len_from_disk() and nilfs_rec_len_to_disk() are moved to nilfs2/dir.c. Link: http://lkml.kernel.org/r/1465825507-3407-4-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r--fs/nilfs2/bmap.h2
-rw-r--r--fs/nilfs2/btree.h2
-rw-r--r--fs/nilfs2/cpfile.c1
-rw-r--r--fs/nilfs2/cpfile.h3
-rw-r--r--fs/nilfs2/dat.h1
-rw-r--r--fs/nilfs2/dir.c22
-rw-r--r--fs/nilfs2/direct.h10
-rw-r--r--fs/nilfs2/ifile.h1
-rw-r--r--fs/nilfs2/ioctl.c1
-rw-r--r--fs/nilfs2/nilfs.h3
-rw-r--r--fs/nilfs2/segment.h1
-rw-r--r--fs/nilfs2/sufile.c1
-rw-r--r--fs/nilfs2/sufile.h1
13 files changed, 29 insertions, 20 deletions
diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index b6a4c8f93ac8..2b6ffbe5997a 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -22,7 +22,7 @@
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/buffer_head.h>
-#include <linux/nilfs2_fs.h>
+#include <linux/nilfs2_ondisk.h> /* nilfs_binfo, nilfs_inode, etc */
#include "alloc.h"
#include "dat.h"
diff --git a/fs/nilfs2/btree.h b/fs/nilfs2/btree.h
index df1a25faa83b..2184e47fa4bf 100644
--- a/fs/nilfs2/btree.h
+++ b/fs/nilfs2/btree.h
@@ -22,7 +22,7 @@
#include <linux/types.h>
#include <linux/buffer_head.h>
#include <linux/list.h>
-#include <linux/nilfs2_fs.h>
+#include <linux/nilfs2_ondisk.h> /* nilfs_btree_node */
#include "btnode.h"
#include "bmap.h"
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index 19d9f4ae8347..a15a1601e931 100644
--- a/fs/nilfs2/cpfile.c
+++ b/fs/nilfs2/cpfile.c
@@ -21,7 +21,6 @@
#include <linux/string.h>
#include <linux/buffer_head.h>
#include <linux/errno.h>
-#include <linux/nilfs2_fs.h>
#include "mdt.h"
#include "cpfile.h"
diff --git a/fs/nilfs2/cpfile.h b/fs/nilfs2/cpfile.h
index 0249744ae234..6eca972f9673 100644
--- a/fs/nilfs2/cpfile.h
+++ b/fs/nilfs2/cpfile.h
@@ -21,7 +21,8 @@
#include <linux/fs.h>
#include <linux/buffer_head.h>
-#include <linux/nilfs2_fs.h>
+#include <linux/nilfs2_api.h> /* nilfs_cpstat */
+#include <linux/nilfs2_ondisk.h> /* nilfs_inode, nilfs_checkpoint */
int nilfs_cpfile_get_checkpoint(struct inode *, __u64, int,
diff --git a/fs/nilfs2/dat.h b/fs/nilfs2/dat.h
index abbfdabcabea..57dc6cf466d0 100644
--- a/fs/nilfs2/dat.h
+++ b/fs/nilfs2/dat.h
@@ -22,6 +22,7 @@
#include <linux/types.h>
#include <linux/buffer_head.h>
#include <linux/fs.h>
+#include <linux/nilfs2_ondisk.h> /* nilfs_inode, nilfs_checkpoint */
struct nilfs_palloc_req;
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 746956d2937a..908ebbf0ac7e 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -42,6 +42,28 @@
#include "nilfs.h"
#include "page.h"
+static inline unsigned int nilfs_rec_len_from_disk(__le16 dlen)
+{
+ unsigned int len = le16_to_cpu(dlen);
+
+#if (PAGE_SIZE >= 65536)
+ if (len == NILFS_MAX_REC_LEN)
+ return 1 << 16;
+#endif
+ return len;
+}
+
+static inline __le16 nilfs_rec_len_to_disk(unsigned int len)
+{
+#if (PAGE_SIZE >= 65536)
+ if (len == (1 << 16))
+ return cpu_to_le16(NILFS_MAX_REC_LEN);
+
+ BUG_ON(len > (1 << 16));
+#endif
+ return cpu_to_le16(len);
+}
+
/*
* nilfs uses block-sized chunks. Arguably, sector-sized ones would be
* more robust, but we have what we have
diff --git a/fs/nilfs2/direct.h b/fs/nilfs2/direct.h
index 3015a6e78724..cfe85e848bba 100644
--- a/fs/nilfs2/direct.h
+++ b/fs/nilfs2/direct.h
@@ -24,16 +24,6 @@
#include "bmap.h"
-/**
- * struct nilfs_direct_node - direct node
- * @dn_flags: flags
- * @dn_pad: padding
- */
-struct nilfs_direct_node {
- __u8 dn_flags;
- __u8 pad[7];
-};
-
#define NILFS_DIRECT_NBLOCKS (NILFS_BMAP_SIZE / sizeof(__le64) - 1)
#define NILFS_DIRECT_KEY_MIN 0
#define NILFS_DIRECT_KEY_MAX (NILFS_DIRECT_NBLOCKS - 1)
diff --git a/fs/nilfs2/ifile.h b/fs/nilfs2/ifile.h
index 23ad2f091e76..188b94fe0ec5 100644
--- a/fs/nilfs2/ifile.h
+++ b/fs/nilfs2/ifile.h
@@ -23,7 +23,6 @@
#include <linux/fs.h>
#include <linux/buffer_head.h>
-#include <linux/nilfs2_fs.h>
#include "mdt.h"
#include "alloc.h"
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 827283fe9525..f1d7989459fd 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -25,7 +25,6 @@
#include <linux/compat.h> /* compat_ptr() */
#include <linux/mount.h> /* mnt_want_write_file(), mnt_drop_write_file() */
#include <linux/buffer_head.h>
-#include <linux/nilfs2_fs.h>
#include "nilfs.h"
#include "segment.h"
#include "bmap.h"
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 2ba8a146af1f..33f8c8fc96e8 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -23,7 +23,8 @@
#include <linux/buffer_head.h>
#include <linux/spinlock.h>
#include <linux/blkdev.h>
-#include <linux/nilfs2_fs.h>
+#include <linux/nilfs2_api.h>
+#include <linux/nilfs2_ondisk.h>
#include "the_nilfs.h"
#include "bmap.h"
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h
index 6565c10b7b76..1060949d7dd2 100644
--- a/fs/nilfs2/segment.h
+++ b/fs/nilfs2/segment.h
@@ -23,7 +23,6 @@
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/workqueue.h>
-#include <linux/nilfs2_fs.h>
#include "nilfs.h"
struct nilfs_root;
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index 12d11de93602..1541a1e9221a 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -22,7 +22,6 @@
#include <linux/string.h>
#include <linux/buffer_head.h>
#include <linux/errno.h>
-#include <linux/nilfs2_fs.h>
#include "mdt.h"
#include "sufile.h"
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index 46e89872294c..158a9190c8ec 100644
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -21,7 +21,6 @@
#include <linux/fs.h>
#include <linux/buffer_head.h>
-#include <linux/nilfs2_fs.h>
#include "mdt.h"