ino_t sn_root_ino; /*the root ino of this snap*/
};
struct smfs_inode_info {
+ /* this first part of struct should be the same as in mds_info_info */
+ //struct lustre_id smi_id;
+
+ /* smfs part. */
struct inode *smi_inode;
__u32 smi_flags;
struct snap_inode_info sm_sninfo;
};
-
+#if 0
struct journal_operations {
void *(*tr_start)(struct inode *, int op);
void (*tr_commit)(void *handle);
};
-
+#endif
struct sm_operations {
/* operations on the file store */
struct super_operations sm_sb_ops;
struct inode_operations sm_dir_iops;
struct inode_operations sm_file_iops;
struct inode_operations sm_sym_iops;
+ struct inode_operations sm_special_iops;
struct file_operations sm_dir_fops;
struct file_operations sm_file_fops;
struct file_operations sm_sym_fops;
- struct dentry_operations sm_dentry_ops;
- struct journal_operations sm_journal_ops;
+ //struct dentry_operations sm_dentry_ops;
+ //struct journal_operations sm_journal_ops;
};
/*smfs rec*/
-typedef int (*smfs_pack_rec_func)(char *buffer, struct dentry *dentry,
+/*typedef int (*smfs_pack_rec_func)(char *buffer, struct dentry *dentry,
struct inode *dir, void *data1,
void *data2, int op);
+
typedef enum {
PACK_NORMAL = 0,
PACK_OST = 1,
PACK_MDS = 2,
PACK_MAX = 3,
} pack_func_t;
+*/
struct mds_kml_pack_info {
int mpi_bufcount;
int mpi_size[4];
int mpi_total_size;
};
-typedef int (*smfs_hook_func)(struct inode *inode, void *dentry,
- void *data1, void *data2, int op, void *handle);
-struct smfs_hook_ops {
- struct list_head smh_list;
- char * smh_name;
- smfs_hook_func smh_post_op;
- smfs_hook_func smh_pre_op;
-};
+
struct smfs_super_info {
struct super_block *smsi_sb;
struct vfsmount *smsi_mnt; /* mount the cache kern */
struct fsfilt_operations *sm_fsfilt; /* fsfilt operations */
struct sm_operations *sm_ops; /* cache ops */
struct lvfs_run_ctxt *smsi_ctxt;
- struct llog_ctxt *smsi_rec_log; /* smfs kml llog */
+ struct llog_ctxt *smsi_kml_log; /* smfs kml llog */
struct dentry *smsi_logs_dir;
struct dentry *smsi_objects_dir;
- struct dentry *smsi_delete_dir; /* for delete inode dir */
char *smsi_cache_ftype; /* cache file system type */
char *smsi_ftype; /* file system type */
struct obd_export *smsi_exp; /* file system obd exp */
struct snap_super_info *smsi_snap_info; /* snap table cow */
- smfs_pack_rec_func smsi_pack_rec[PACK_MAX]; /* sm_pack_rec type ops */
- __u32 smsi_flags; /* flags */
+ //smfs_pack_rec_func smsi_pack_rec[PACK_MAX]; /* sm_pack_rec type ops */
+ struct rw_semaphore plg_sem; /*rw semaphore to protect plg operations */
+ __u32 plg_flags; /* flags */
+ __u32 smsi_flags;
__u32 smsi_ops_check;
- struct list_head smsi_hook_list;
- kmem_cache_t * smsi_inode_cachep; /*inode_cachep*/
+ struct list_head smsi_plg_list;
+ //kmem_cache_t * smsi_inode_cachep; /*inode_cachep*/
};
};
#define I2SMI(inode) ((struct smfs_inode_info *) ((inode->u.generic_ip)))
+//#define I2FSI(inode) (((inode->u.generic_ip)))
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+#define S2FSI(sb) (((sb->u.generic_sbp)))
#define S2SMI(sb) ((struct smfs_super_info *) ((sb->u.generic_sbp)))
#define S2CSB(sb) (((struct smfs_super_info *)((sb->u.generic_sbp)))->smsi_sb)
#else
+#define S2FSI(sb) ((sb->s_fs_info))
#define S2SMI(sb) ((struct smfs_super_info *) (sb->s_fs_info))
#define S2CSB(sb) (((struct smfs_super_info *) (sb->s_fs_info))->smsi_sb)
#endif
#define SIZE2BLKS(size, inode) ((size + (I2CI(inode)->i_blksize)) >> (I2CI(inode)->i_blkbits))
#define OFF2BLKS(off, inode) (off >> (I2CI(inode)->i_blkbits))
-#define SM_DO_REC 0x1
-#define SM_INIT_REC 0x2
-#define SM_CACHE_HOOK 0x4
-#define SM_OVER_WRITE 0x8
-#define SM_DIRTY_WRITE 0x10
+/* SMFS external flags and methods */
+#define SM_ALL_PLG 0x80L
+
+#define SM_KML_PLG 0x1L
+#define SM_DO_REC SM_KML_PLG
+
+//#define SM_INIT_REC 0x2
+//#define SM_CACHE_HOOK 0x4
+//#define SM_OVER_WRITE 0x8
+//#define SM_DIRTY_WRITE 0x10
#define SM_DO_COW 0x20
#define SM_DO_COWED 0x40
+#define SM_HND_IBLOCKS 0x80
+/*
#define SMFS_DO_REC(smfs_info) (smfs_info->smsi_flags & SM_DO_REC)
#define SMFS_SET_REC(smfs_info) (smfs_info->smsi_flags |= SM_DO_REC)
#define SMFS_CLEAN_REC(smfs_info) (smfs_info->smsi_flags &= ~SM_DO_REC)
#define SMFS_INODE_DIRTY_WRITE(inode) (I2SMI(inode)->smi_flags & SM_DIRTY_WRITE)
#define SMFS_SET_INODE_DIRTY_WRITE(inode) (I2SMI(inode)->smi_flags |= SM_DIRTY_WRITE)
#define SMFS_CLEAN_INODE_DIRTY_WRITE(inode) (I2SMI(inode)->smi_flags &= ~SM_DIRTY_WRITE)
-
+*/
#define SMFS_DO_COW(smfs_info) (smfs_info->smsi_flags & SM_DO_COW)
#define SMFS_SET_COW(smfs_info) (smfs_info->smsi_flags |= SM_DO_COW)
#define SMFS_CLEAN_COW(smfs_info) (smfs_info->smsi_flags &= ~SM_DO_COW)
#define SMFS_DO_INODE_COWED(inode) (I2SMI(inode)->smi_flags & SM_DO_COWED)
#define SMFS_CLEAN_INODE_COWED(inode) (I2SMI(inode)->smi_flags &= ~SM_DO_COWED)
+#define SMFS_DO_HND_IBLOCKS(smfs_info) (smfs_info->smsi_flags & SM_HND_IBLOCKS)
+#define SMFS_SET_HND_IBLOCKS(smfs_info) (smfs_info->smsi_flags |= SM_HND_IBLOCKS)
+#define SMFS_CLEAN_HND_IBLOCKS(smfs_info) (smfs_info->smsi_flags &= ~SM_HND_IBLOCKS)
-#define LVFS_SMFS_BACK_ATTR "lvfs_back_attr"
-
+//#define LVFS_SMFS_BACK_ATTR "lvfs_back_attr"
+#if 0
#define REC_COUNT_BIT 0
#define REC_COUNT_MASK 0x01 /*0001*/
#define REC_OP_BIT 1
#define REC_GET_OID_BIT 5
#define REC_GET_OID_MASK 0x20 /*100000*/
-#define REC_PACK_TYPE_BIT 6
-#define REC_PACK_TYPE_MASK 0x1C0 /*111000000*/
+//#define REC_PACK_TYPE_BIT 6
+//#define REC_PACK_TYPE_MASK 0x1C0 /*111000000*/
#define SET_REC_COUNT_FLAGS(flag, count_flag) \
(flag |= count_flag << REC_COUNT_BIT)
#define GET_REC_PACK_TYPE_INDEX(flag) \
((flag & REC_PACK_TYPE_MASK) >> REC_PACK_TYPE_BIT)
-#define SMFS_REC_ALL 0x1
-#define SMFS_REC_BY_COUNT 0x0
+//#define SMFS_REC_ALL 0x1
+//#define SMFS_REC_BY_COUNT 0x0
-#define SMFS_REINT_REC 0x1
-#define SMFS_UNDO_REC 0x2
+//#define SMFS_REINT_REC 0x1
+//#define SMFS_UNDO_REC 0x2
#define SMFS_WRITE_KML 0x1
#define SMFS_DEC_LINK 0x1
(GET_REC_COUNT_FLAGS(flag) == SMFS_REC_ALL)
#define SMFS_DO_REC_BY_COUNT(flag) \
(GET_REC_COUNT_FLAGS(flag) == SMFS_REC_BY_COUNT)
+
#define SMFS_DO_WRITE_KML(flag) \
(GET_REC_WRITE_KML_FLAGS(flag) == SMFS_WRITE_KML)
+
#define SMFS_DO_DEC_LINK(flag) \
(GET_REC_DEC_LINK_FLAGS(flag) == SMFS_DEC_LINK)
#define SMFS_DO_GET_OID(flag) \
(GET_REC_GET_OID_FLAGS(flag) == SMFS_GET_OID)
-
+#endif
/*DIRTY flags of write ops*/
#define REINT_EXTENTS_FLAGS "replay_flags"
#define SMFS_DIRTY_WRITE 0x01
#define SMFS_OVER_WRITE 0x02
-
static inline void duplicate_inode(struct inode *dst_inode,
struct inode *src_inode)
{
dst_inode->i_mode = src_inode->i_mode;
dst_inode->i_uid = src_inode->i_uid;
dst_inode->i_gid = src_inode->i_gid;
- dst_inode->i_nlink = src_inode->i_nlink;
+ //dst_inode->i_nlink = src_inode->i_nlink;
dst_inode->i_size = src_inode->i_size;
dst_inode->i_atime = src_inode->i_atime;
dst_inode->i_ctime = src_inode->i_ctime;
dst_inode->i_mtime = src_inode->i_mtime;
dst_inode->i_blksize = src_inode->i_blksize;
dst_inode->i_version = src_inode->i_version;
- dst_inode->i_state = src_inode->i_state;
+ //dst_inode->i_state = src_inode->i_state;
dst_inode->i_generation = src_inode->i_generation;
dst_inode->i_flags = src_inode->i_flags;
-
+
/* This is to make creating special files working. */
dst_inode->i_rdev = src_inode->i_rdev;
}
{
if (inode && cache_inode) {
duplicate_inode(inode, cache_inode);
- /*Here we must release the cache_inode,
- *Otherwise we will have no chance to
- *do it
+ /*
+ * here we must release the cache_inode, otherwise we will have
+ * no chance to do it later.
*/
- cache_inode->i_state &=~I_LOCK;
+ //cache_inode->i_state &=~I_LOCK;
inode->i_blocks = cache_inode->i_blocks;
}
}
+static inline void i_nlink_inc(struct inode * inode)
+{
+ inode->i_nlink++;
+ if (I2SMI(inode))
+ I2CI(inode)->i_nlink++;
+}
+
+static inline void i_nlink_dec(struct inode * inode)
+{
+ inode->i_nlink--;
+ if (I2SMI(inode))
+ I2CI(inode)->i_nlink--;
+}
+
static inline void pre_smfs_inode(struct inode *inode,
struct inode *cache_inode)
{
if (inode && cache_inode) {
- cache_inode->i_state = inode->i_state;
- // duplicate_inode(cache_inode, inode);
+ cache_inode->i_flags = inode->i_flags;
+ cache_inode->i_generation = inode->i_generation;
}
}
dst_sb->s_flags = src_sb->s_flags;
}
-static inline void d_unalloc(struct dentry *dentry)
-{
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
- list_del(&dentry->d_hash);
- INIT_LIST_HEAD(&dentry->d_hash);
-#else
- hlist_del_init(&dentry->d_hash);
- dentry->d_flags |= DCACHE_UNHASHED;
-#endif
- dput(dentry); /* this will free the dentry memory */
-}
-
static inline int smfs_get_dentry_name_index(struct dentry *dentry,
- struct qstr *str,
+ struct qstr *str,
int *index)
{
char *name = (char *)dentry->d_name.name;
str->hash = end_name_hash(hash);
OBD_ALLOC(str_name, len + 1);
memcpy(str_name, dentry->d_name.name, len);
- str->len = len;
- str->name = str_name;
- if (index && c == ':') {
+ qstr_assign(str, str_name, len);
+ if (index && c == ':')
*index = simple_strtoul(name, 0, 0);
- }
return 0;
}
OBD_FREE(name, str->len + 1);
}
+static int smfs_d_delete(struct dentry * dentry)
+{
+ return 1;
+}
+
+static struct dentry_operations sm_dop = {
+ .d_delete = smfs_d_delete,
+};
+
+
+static inline void smfs_update_dentry(struct dentry *dentry,
+ struct dentry *cache_dentry)
+{
+ if (DCACHE_CROSS_REF & cache_dentry->d_flags) {
+ dentry->d_flags |= DCACHE_CROSS_REF;
+ dentry->d_generation = cache_dentry->d_generation;
+ dentry->d_mdsnum = cache_dentry->d_mdsnum;
+ dentry->d_fid = cache_dentry->d_fid;
+ dentry->d_inum = cache_dentry->d_inum;
+ }
+}
+
static inline struct dentry *pre_smfs_dentry(struct dentry *parent_dentry,
struct inode *cache_inode,
struct dentry *dentry)
cache_dentry = d_alloc(parent_dentry, &dentry->d_name);
if (!cache_dentry)
RETURN(NULL);
+
+ //wantedi support
+ cache_dentry->d_fsdata = dentry->d_fsdata;
+
+ //cmd support
+ smfs_update_dentry(cache_dentry, dentry);
+
if (!parent_dentry)
cache_dentry->d_parent = cache_dentry;
- if (cache_inode)
+
+ if (cache_inode) {
+ atomic_inc(&cache_inode->i_count); //d_instantiate suppose that
d_add(cache_dentry, cache_inode);
+ }
+ //defines d_delete op to force killing dentry
+ cache_dentry->d_op = &sm_dop;
+
RETURN(cache_dentry);
}
static inline void post_smfs_dentry(struct dentry *cache_dentry)
{
- if (!cache_dentry)
- return;
- if (cache_dentry->d_inode)
- igrab(cache_dentry->d_inode);
- d_unalloc(cache_dentry);
-}
-
-static inline int lookup_by_path(char *path, int flags, struct nameidata *nd)
-{
- struct dentry *dentry = NULL;
- int rc = 0;
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
- if (path_init(path, flags, nd)) {
-#else
- if (path_lookup(path, flags, nd)) {
-#endif
- rc = path_walk(path, nd);
- if (rc)
- RETURN(rc);
- } else {
- RETURN(-EINVAL);
- }
-
- dentry = nd->dentry;
-
- if (!dentry->d_inode || is_bad_inode(dentry->d_inode)) {
- path_release(nd);
- RETURN(-ENODEV);
- }
- RETURN(rc);
-}
-
-/*FIXME there should be more conditions in this check*/
-static inline int smfs_do_rec(struct inode *inode)
-{
- struct super_block *sb = inode->i_sb;
- struct smfs_super_info *smfs_info = S2SMI(sb);
-
- if (SMFS_DO_REC(smfs_info) && SMFS_INIT_REC(smfs_info) &&
- SMFS_DO_INODE_REC(inode))
- return 1;
- return 0;
-}
-
-static inline int smfs_cache_hook(struct inode *inode)
-{
- struct smfs_super_info *smfs_info = I2CSB(inode);
-
- if (SMFS_CACHE_HOOK(smfs_info) && SMFS_INIT_REC(smfs_info) &&
- SMFS_INODE_CACHE_HOOK(inode))
- return 1;
- else
- return 0;
+ if (cache_dentry)
+ dput(cache_dentry);
+
}
static inline int smfs_do_cow(struct inode *inode)
return 0;
}
-
-/* XXX BUG 3188 -- must return to one set of opcodes */
-#define SMFS_TRANS_OP(inode, op) \
-{ \
- if (smfs_do_rec(inode)) \
- op = op | 0x10; \
- if (smfs_cache_hook(inode)) \
- op = op | 0x20; \
-}
-
-extern int smfs_start_rec(struct super_block *sb, struct vfsmount *mnt);
-extern int smfs_stop_rec(struct super_block *sb);
extern int smfs_write_extents(struct inode *dir, struct dentry *dentry,
unsigned long from, unsigned long num);
-extern int smfs_rec_setattr(struct inode *dir, struct dentry *dentry,
- struct iattr *attr);
extern int smfs_rec_precreate(struct dentry *dentry, int *num, struct obdo *oa);
-extern int smfs_rec_md(struct inode *inode, void * lmm, int lmm_size);
extern int smfs_rec_unpack(struct smfs_proc_args *args, char *record,
char **pbuf, int *opcode);
-
-
-extern int smfs_post_setup(struct super_block *sb, struct vfsmount *mnt);
-extern int smfs_post_cleanup(struct super_block *sb);
-extern struct inode *smfs_get_inode (struct super_block *sb, ino_t hash,
- struct inode *dir, int index);
-
-extern int is_smfs_sb(struct super_block *sb);
#endif /* _LUSTRE_SMFS_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff