+++ /dev/null
-/* object based disk file system
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C), 1999, Stelias Computing Inc
- *
- *
- */
-
-
-#ifndef _OBDFS_H
-#define _OBDFS_H
-#include <linux/obd_class.h>
-#include <linux/list.h>
-
-static inline struct obdo *obdo_fromid(struct lustre_handle *conn, obd_id id,
- obd_mode mode, obd_flag valid)
-{
- struct obdo *oa;
- int err;
-
- ENTRY;
- oa = obdo_alloc();
- if ( !oa ) {
- RETURN(ERR_PTR(-ENOMEM));
- }
-
- oa->o_id = id;
- oa->o_mode = mode;
- oa->o_valid = valid;
- if ((err = obd_getattr(conn, oa))) {
- obdo_free(oa);
- RETURN(ERR_PTR(err));
- }
- RETURN(oa);
-}
-
-
-struct obdfs_inode_info {
- int oi_flags;
- struct list_head oi_inodes;
- struct list_head oi_pages;
- char oi_inline[OBD_INLINESZ];
-};
-
-struct obdfs_sb_info {
- struct list_head osi_list; /* list of supers */
- struct lustre_handle osi_conn;
- struct super_block *osi_super;
- struct obd_device *osi_obd;
- ino_t osi_rootino; /* number of root inode */
- int osi_minor; /* minor of /dev/obdX */
- struct list_head osi_inodes; /* list of dirty inodes */
- unsigned long osi_cache_count;
- struct semaphore osi_list_mutex;
-};
-
-
-static inline struct obdfs_inode_info *obdfs_i2info(struct inode *inode)
-{
- return (struct obdfs_inode_info *)&(inode->u.generic_ip);
-}
-
-static inline int obdfs_has_inline(struct inode *inode)
-{
- return (obdfs_i2info(inode)->oi_flags & OBD_FL_INLINEDATA);
-}
-
-static void inline obdfs_from_inode(struct obdo *oa, struct inode *inode)
-{
- struct obdfs_inode_info *oinfo = obdfs_i2info(inode);
-
- CDEBUG(D_INFO, "src inode %ld, dst obdo %ld valid 0x%08x\n",
- inode->i_ino, (long)oa->o_id, oa->o_valid);
- obdo_from_inode(oa, inode);
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
- CDEBUG(D_INODE, "copying device %x from inode to obdo\n",
- inode->i_rdev);
- *((obd_rdev *)oa->o_inline) = kdev_t_to_nr(inode->i_rdev);
- oa->o_obdflags |= OBD_FL_INLINEDATA;
- oa->o_valid |= OBD_MD_FLINLINE;
- } else if (obdfs_has_inline(inode)) {
- CDEBUG(D_INODE, "copying inline data from inode to obdo\n");
- memcpy(oa->o_inline, oinfo->oi_inline, OBD_INLINESZ);
- oa->o_obdflags |= OBD_FL_INLINEDATA;
- oa->o_valid |= OBD_MD_FLINLINE;
- }
-} /* obdfs_from_inode */
-
-static void inline obdfs_to_inode(struct inode *inode, struct obdo *oa)
-{
- struct obdfs_inode_info *oinfo = obdfs_i2info(inode);
-
- CDEBUG(D_INFO, "src obdo %ld valid 0x%08x, dst inode %ld\n",
- (long)oa->o_id, oa->o_valid, inode->i_ino);
-
- obdo_to_inode(inode, oa);
-
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
- S_ISFIFO(inode->i_mode)) {
- obd_rdev rdev = *((obd_rdev *)oa->o_inline);
- init_special_inode(inode, inode->i_mode, rdev);
- }
- if (obdo_has_inline(oa)) {
- CDEBUG(D_INFO, "copying inline from obdo to inode\n");
- memcpy(oinfo->oi_inline, oa->o_inline, OBD_INLINESZ);
- oinfo->oi_flags |= OBD_FL_INLINEDATA;
- }
-} /* obdfs_to_inode */
-
-#define NOLOCK 0
-#define LOCKED 1
-
-#ifdef OPS
-#warning "*** WARNING redefining OPS"
-#else
-#define OPS(sb,op) ((struct obdfs_sb_info *)(& (sb)->u.generic_sbp))->osi_ops->o_ ## op
-#define IOPS(inode,op) ((struct obdfs_sb_info *)(&(inode)->i_sb->u.generic_sbp))->osi_ops->o_ ## op
-#endif
-
-#ifdef ID
-#warning "*** WARNING redefining ID"
-#else
-#define ID(sb) (&((struct obdfs_sb_info *)( &(sb)->u.generic_sbp))->osi_conn)
-#define IID(inode) (&((struct obdfs_sb_info *)( &(inode)->i_sb->u.generic_sbp))->osi_conn)
-#endif
-
-#define OBDFS_SUPER_MAGIC 0x4711
-
-/* super.c */
-struct obdfs_pgrq {
- struct list_head rq_plist; /* linked list of req's */
- unsigned long rq_jiffies;
- struct page *rq_page; /* page to be written */
-};
-
-extern struct list_head obdfs_super_list; /* list of all OBDFS superblocks */
-
-
-
-/* dir.c */
-extern struct file_operations obdfs_dir_operations;
-extern struct inode_operations obdfs_dir_inode_operations;
-
-/* file.c */
-extern struct file_operations obdfs_file_operations;
-extern struct inode_operations obdfs_file_inode_operations;
-
-/* flush.c */
-void obdfs_dequeue_pages(struct inode *inode);
-int obdfs_flushd_init(void);
-int obdfs_flushd_cleanup(void);
-int obdfs_flush_reqs(struct list_head *inode_list, unsigned long check_time);
-int obdfs_flush_dirty_pages(unsigned long check_time);
-
-/* namei.c */
-
-/* rw.c */
-int obdfs_do_writepage(struct page *, int sync);
-int obdfs_init_pgrqcache(void);
-void obdfs_cleanup_pgrqcache(void);
-inline void obdfs_pgrq_del(struct obdfs_pgrq *pgrq);
-int obdfs_readpage(struct file *file, struct page *page);
-int obdfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to);
-int obdfs_commit_write(struct file *file, struct page *page, unsigned from, unsigned to);
-int obdfs_writepage(struct page *page);
-struct page *obdfs_getpage(struct inode *inode, unsigned long offset,
- int create, int locked);
-int obdfs_write_one_page(struct file *file, struct page *page,
- unsigned long offset, unsigned long bytes,
- const char * buf);
-int obdfs_do_vec_wr(struct inode **inodes, obd_count num_io, obd_count num_oa,
- struct obdo **obdos, obd_count *oa_bufs,
- struct page **pages, char **bufs, obd_size *counts,
- obd_off *offsets, obd_flag *flags);
-void obdfs_truncate(struct inode *inode);
-
-/* super.c */
-extern long obdfs_cache_count;
-extern long obdfs_mutex_start;
-
-/* symlink.c */
-extern struct inode_operations obdfs_fast_symlink_inode_operations;
-extern struct inode_operations obdfs_symlink_inode_operations;
-
-/* sysctl.c */
-void obdfs_sysctl_init(void);
-void obdfs_sysctl_clean(void);
-
-static inline struct obdfs_sb_info *obdfs_i2sbi(struct inode *inode)
-{
- return (struct obdfs_sb_info *) &(inode->i_sb->u.generic_sbp);
-}
-
-static inline struct list_head *obdfs_iplist(struct inode *inode)
-{
- struct obdfs_inode_info *info = obdfs_i2info(inode);
-
- return &info->oi_pages;
-}
-
-static inline struct list_head *obdfs_islist(struct inode *inode)
-{
- struct obdfs_inode_info *info = obdfs_i2info(inode);
-
- return &info->oi_inodes;
-}
-
-static inline struct list_head *obdfs_slist(struct inode *inode)
-{
- struct obdfs_sb_info *sbi = obdfs_i2sbi(inode);
-
- return &sbi->osi_inodes;
-}
-
-static void inline obdfs_set_size (struct inode *inode, obd_size size)
-{
- inode->i_size = size;
- inode->i_blocks = (inode->i_size + inode->i_sb->s_blocksize - 1) >>
- inode->i_sb->s_blocksize_bits;
-} /* obdfs_set_size */
-
-#endif
-