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-rw-r--r--fs/nilfs2/nilfs.h81
1 files changed, 55 insertions, 26 deletions
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 385704027575..33f8c8fc96e8 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -13,12 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Written by Koji Sato <koji@osrg.net>
- * Ryusuke Konishi <ryusuke@osrg.net>
+ * Written by Koji Sato and Ryusuke Konishi.
*/
#ifndef _NILFS_H
@@ -28,7 +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"
@@ -69,8 +65,10 @@ struct nilfs_inode_info {
*/
struct rw_semaphore xattr_sem;
#endif
- struct buffer_head *i_bh; /* i_bh contains a new or dirty
- disk inode */
+ struct buffer_head *i_bh; /*
+ * i_bh contains a new or dirty
+ * disk inode.
+ */
struct nilfs_root *i_root;
struct inode vfs_inode;
};
@@ -100,8 +98,10 @@ enum {
NILFS_I_NEW = 0, /* Inode is newly created */
NILFS_I_DIRTY, /* The file is dirty */
NILFS_I_QUEUED, /* inode is in dirty_files list */
- NILFS_I_BUSY, /* inode is grabbed by a segment
- constructor */
+ NILFS_I_BUSY, /*
+ * Inode is grabbed by a segment
+ * constructor
+ */
NILFS_I_COLLECTED, /* All dirty blocks are collected */
NILFS_I_UPDATED, /* The file has been written back */
NILFS_I_INODE_SYNC, /* dsync is not allowed for inode */
@@ -120,20 +120,19 @@ enum {
/*
* Macros to check inode numbers
*/
-#define NILFS_MDT_INO_BITS \
- ((unsigned int)(1 << NILFS_DAT_INO | 1 << NILFS_CPFILE_INO | \
- 1 << NILFS_SUFILE_INO | 1 << NILFS_IFILE_INO | \
- 1 << NILFS_ATIME_INO | 1 << NILFS_SKETCH_INO))
+#define NILFS_MDT_INO_BITS \
+ (BIT(NILFS_DAT_INO) | BIT(NILFS_CPFILE_INO) | \
+ BIT(NILFS_SUFILE_INO) | BIT(NILFS_IFILE_INO) | \
+ BIT(NILFS_ATIME_INO) | BIT(NILFS_SKETCH_INO))
-#define NILFS_SYS_INO_BITS \
- ((unsigned int)(1 << NILFS_ROOT_INO) | NILFS_MDT_INO_BITS)
+#define NILFS_SYS_INO_BITS (BIT(NILFS_ROOT_INO) | NILFS_MDT_INO_BITS)
#define NILFS_FIRST_INO(sb) (((struct the_nilfs *)sb->s_fs_info)->ns_first_ino)
#define NILFS_MDT_INODE(sb, ino) \
- ((ino) < NILFS_FIRST_INO(sb) && (NILFS_MDT_INO_BITS & (1 << (ino))))
+ ((ino) < NILFS_FIRST_INO(sb) && (NILFS_MDT_INO_BITS & BIT(ino)))
#define NILFS_VALID_INODE(sb, ino) \
- ((ino) >= NILFS_FIRST_INO(sb) || (NILFS_SYS_INO_BITS & (1 << (ino))))
+ ((ino) >= NILFS_FIRST_INO(sb) || (NILFS_SYS_INO_BITS & BIT(ino)))
/**
* struct nilfs_transaction_info: context information for synchronization
@@ -145,8 +144,10 @@ enum {
struct nilfs_transaction_info {
u32 ti_magic;
void *ti_save;
- /* This should never used. If this happens,
- one of other filesystems has a bug. */
+ /*
+ * This should never be used. If it happens,
+ * one of other filesystems has a bug.
+ */
unsigned short ti_flags;
unsigned short ti_count;
};
@@ -156,8 +157,10 @@ struct nilfs_transaction_info {
/* ti_flags */
#define NILFS_TI_DYNAMIC_ALLOC 0x0001 /* Allocated from slab */
-#define NILFS_TI_SYNC 0x0002 /* Force to construct segment at the
- end of transaction. */
+#define NILFS_TI_SYNC 0x0002 /*
+ * Force to construct segment at the
+ * end of transaction.
+ */
#define NILFS_TI_GC 0x0004 /* GC context */
#define NILFS_TI_COMMIT 0x0008 /* Change happened or not */
#define NILFS_TI_WRITER 0x0010 /* Constructor context */
@@ -279,7 +282,7 @@ extern void nilfs_write_failed(struct address_space *mapping, loff_t to);
int nilfs_permission(struct inode *inode, int mask);
int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh);
extern int nilfs_inode_dirty(struct inode *);
-int nilfs_set_file_dirty(struct inode *inode, unsigned nr_dirty);
+int nilfs_set_file_dirty(struct inode *inode, unsigned int nr_dirty);
extern int __nilfs_mark_inode_dirty(struct inode *, int);
extern void nilfs_dirty_inode(struct inode *, int flags);
int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
@@ -296,10 +299,36 @@ static inline int nilfs_mark_inode_dirty_sync(struct inode *inode)
/* super.c */
extern struct inode *nilfs_alloc_inode(struct super_block *);
extern void nilfs_destroy_inode(struct inode *);
+
extern __printf(3, 4)
-void nilfs_error(struct super_block *, const char *, const char *, ...);
+void __nilfs_msg(struct super_block *sb, const char *level,
+ const char *fmt, ...);
extern __printf(3, 4)
-void nilfs_warning(struct super_block *, const char *, const char *, ...);
+void __nilfs_error(struct super_block *sb, const char *function,
+ const char *fmt, ...);
+
+#ifdef CONFIG_PRINTK
+
+#define nilfs_msg(sb, level, fmt, ...) \
+ __nilfs_msg(sb, level, fmt, ##__VA_ARGS__)
+#define nilfs_error(sb, fmt, ...) \
+ __nilfs_error(sb, __func__, fmt, ##__VA_ARGS__)
+
+#else
+
+#define nilfs_msg(sb, level, fmt, ...) \
+ do { \
+ no_printk(fmt, ##__VA_ARGS__); \
+ (void)(sb); \
+ } while (0)
+#define nilfs_error(sb, fmt, ...) \
+ do { \
+ no_printk(fmt, ##__VA_ARGS__); \
+ __nilfs_error(sb, "", " "); \
+ } while (0)
+
+#endif /* CONFIG_PRINTK */
+
extern struct nilfs_super_block *
nilfs_read_super_block(struct super_block *, u64, int, struct buffer_head **);
extern int nilfs_store_magic_and_option(struct super_block *,