nfsd4: reshuffle lease-setting code to allow reuse

[safe/jmp/linux-2.6] / fs / gfs2 / inode.h

diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 3268a2f..c341aaf 100644 (file)
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -10,14 +10,37 @@
 #ifndef __INODE_DOT_H__
 #define __INODE_DOT_H__
 
+#include <linux/fs.h>
+#include <linux/buffer_head.h>
+#include <linux/mm.h>
+#include "util.h"
+
+extern int gfs2_releasepage(struct page *page, gfp_t gfp_mask);
+extern int gfs2_internal_read(struct gfs2_inode *ip,
+                             struct file_ra_state *ra_state,
+                             char *buf, loff_t *pos, unsigned size);
+extern void gfs2_set_aops(struct inode *inode);
+
 static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
 {
-       return !ip->i_di.di_height;
+       return !ip->i_height;
 }
 
 static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
 {
-       return ip->i_di.di_flags & GFS2_DIF_JDATA;
+       return ip->i_diskflags & GFS2_DIF_JDATA;
+}
+
+static inline int gfs2_is_writeback(const struct gfs2_inode *ip)
+{
+       const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       return (sdp->sd_args.ar_data == GFS2_DATA_WRITEBACK) && !gfs2_is_jdata(ip);
+}
+
+static inline int gfs2_is_ordered(const struct gfs2_inode *ip)
+{
+       const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       return (sdp->sd_args.ar_data == GFS2_DATA_ORDERED) && !gfs2_is_jdata(ip);
 }
 
 static inline int gfs2_is_dir(const struct gfs2_inode *ip)
@@ -25,13 +48,25 @@ static inline int gfs2_is_dir(const struct gfs2_inode *ip)
        return S_ISDIR(ip->i_inode.i_mode);
 }
 
-static inline void gfs2_set_inode_blocks(struct inode *inode)
+static inline void gfs2_set_inode_blocks(struct inode *inode, u64 blocks)
+{
+       inode->i_blocks = blocks <<
+               (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
+}
+
+static inline u64 gfs2_get_inode_blocks(const struct inode *inode)
 {
-       struct gfs2_inode *ip = GFS2_I(inode);
-       inode->i_blocks = ip->i_di.di_blocks <<
+       return inode->i_blocks >>
                (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
 }
 
+static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change)
+{
+       gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks > -change));
+       change *= (GFS2_SB(inode)->sd_sb.sb_bsize/GFS2_BASIC_BLOCK);
+       inode->i_blocks += change;
+}
+
 static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr,
                                  u64 no_formal_ino)
 {
@@ -46,30 +81,52 @@ static inline void gfs2_inum_out(const struct gfs2_inode *ip,
 }
 
 
-void gfs2_inode_attr_in(struct gfs2_inode *ip);
-struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type, 
-                               u64 no_addr, u64 no_formal_ino);
-struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
-
-int gfs2_inode_refresh(struct gfs2_inode *ip);
-
-int gfs2_dinode_dealloc(struct gfs2_inode *inode);
-int gfs2_change_nlink(struct gfs2_inode *ip, int diff);
-struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
-                          int is_root, struct nameidata *nd);
-struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
-                          unsigned int mode, dev_t dev);
-int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
-               struct gfs2_inode *ip);
-int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
-                  const struct gfs2_inode *ip);
-int gfs2_ok_to_move(struct gfs2_inode *this, struct gfs2_inode *to);
-int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len);
-int gfs2_glock_nq_atime(struct gfs2_holder *gh);
-int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
-struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
-void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
-void gfs2_dinode_print(const struct gfs2_inode *ip);
+extern void gfs2_set_iop(struct inode *inode);
+extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type, 
+                                      u64 no_addr, u64 no_formal_ino,
+                                      int skip_freeing);
+extern struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
+
+extern int gfs2_inode_refresh(struct gfs2_inode *ip);
+
+extern int gfs2_dinode_dealloc(struct gfs2_inode *inode);
+extern int gfs2_change_nlink(struct gfs2_inode *ip, int diff);
+extern struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
+                                 int is_root);
+extern struct inode *gfs2_createi(struct gfs2_holder *ghs,
+                                 const struct qstr *name,
+                                 unsigned int mode, dev_t dev);
+extern int gfs2_permission(struct inode *inode, int mask);
+extern int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
+extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
+extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
+extern void gfs2_dinode_print(const struct gfs2_inode *ip);
+
+extern const struct inode_operations gfs2_file_iops;
+extern const struct inode_operations gfs2_dir_iops;
+extern const struct inode_operations gfs2_symlink_iops;
+extern const struct file_operations gfs2_file_fops_nolock;
+extern const struct file_operations gfs2_dir_fops_nolock;
+
+extern void gfs2_set_inode_flags(struct inode *inode);
+ 
+#ifdef CONFIG_GFS2_FS_LOCKING_DLM
+extern const struct file_operations gfs2_file_fops;
+extern const struct file_operations gfs2_dir_fops;
+
+static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
+{
+       return sdp->sd_args.ar_localflocks;
+}
+#else /* Single node only */
+#define gfs2_file_fops gfs2_file_fops_nolock
+#define gfs2_dir_fops gfs2_dir_fops_nolock
+
+static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
+{
+       return 1;
+}
+#endif /* CONFIG_GFS2_FS_LOCKING_DLM */
 
 #endif /* __INODE_DOT_H__ */