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Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h127
1 files changed, 99 insertions, 28 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 442ebf6..29fd23c 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -63,6 +63,7 @@ enum {
NFS_LAYOUT_BULK_RECALL, /* bulk recall affecting layout */
NFS_LAYOUT_ROC, /* some lseg had roc bit set */
NFS_LAYOUT_DESTROYED, /* no new use of layout allowed */
+ NFS_LAYOUT_INVALID, /* layout is being destroyed */
};
enum layoutdriver_policy_flags {
@@ -94,11 +95,20 @@ struct pnfs_layoutdriver_type {
const struct nfs_pageio_ops *pg_read_ops;
const struct nfs_pageio_ops *pg_write_ops;
+ struct pnfs_ds_commit_info *(*get_ds_info) (struct inode *inode);
void (*mark_request_commit) (struct nfs_page *req,
- struct pnfs_layout_segment *lseg);
- void (*clear_request_commit) (struct nfs_page *req);
- int (*scan_commit_lists) (struct inode *inode, int max, spinlock_t *lock);
- int (*commit_pagelist)(struct inode *inode, struct list_head *mds_pages, int how);
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo);
+ void (*clear_request_commit) (struct nfs_page *req,
+ struct nfs_commit_info *cinfo);
+ int (*scan_commit_lists) (struct nfs_commit_info *cinfo,
+ int max);
+ void (*recover_commit_reqs) (struct list_head *list,
+ struct nfs_commit_info *cinfo);
+ int (*commit_pagelist)(struct inode *inode,
+ struct list_head *mds_pages,
+ int how,
+ struct nfs_commit_info *cinfo);
/*
* Return PNFS_ATTEMPTED to indicate the layout code has attempted
@@ -168,8 +178,10 @@ extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp);
void get_layout_hdr(struct pnfs_layout_hdr *lo);
void put_lseg(struct pnfs_layout_segment *lseg);
-bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *);
-bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *, int);
+bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *,
+ const struct nfs_pgio_completion_ops *);
+bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *,
+ int, const struct nfs_pgio_completion_ops *);
void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32);
void unset_pnfs_layoutdriver(struct nfs_server *);
@@ -211,6 +223,11 @@ struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino,
gfp_t gfp_flags);
void nfs4_deviceid_mark_client_invalid(struct nfs_client *clp);
+int pnfs_read_done_resend_to_mds(struct inode *inode, struct list_head *head,
+ const struct nfs_pgio_completion_ops *compl_ops);
+int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head,
+ const struct nfs_pgio_completion_ops *compl_ops);
+struct nfs4_threshold *pnfs_mdsthreshold_alloc(void);
/* nfs4_deviceid_flags */
enum {
@@ -261,49 +278,66 @@ static inline int pnfs_enabled_sb(struct nfs_server *nfss)
}
static inline int
-pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
+pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how,
+ struct nfs_commit_info *cinfo)
{
- if (!test_and_clear_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags))
+ if (cinfo->ds == NULL || cinfo->ds->ncommitting == 0)
return PNFS_NOT_ATTEMPTED;
- return NFS_SERVER(inode)->pnfs_curr_ld->commit_pagelist(inode, mds_pages, how);
+ return NFS_SERVER(inode)->pnfs_curr_ld->commit_pagelist(inode, mds_pages, how, cinfo);
+}
+
+static inline struct pnfs_ds_commit_info *
+pnfs_get_ds_info(struct inode *inode)
+{
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
+
+ if (ld == NULL || ld->get_ds_info == NULL)
+ return NULL;
+ return ld->get_ds_info(inode);
}
static inline bool
-pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
struct inode *inode = req->wb_context->dentry->d_inode;
struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
if (lseg == NULL || ld->mark_request_commit == NULL)
return false;
- ld->mark_request_commit(req, lseg);
+ ld->mark_request_commit(req, lseg, cinfo);
return true;
}
static inline bool
-pnfs_clear_request_commit(struct nfs_page *req)
+pnfs_clear_request_commit(struct nfs_page *req, struct nfs_commit_info *cinfo)
{
struct inode *inode = req->wb_context->dentry->d_inode;
struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
if (ld == NULL || ld->clear_request_commit == NULL)
return false;
- ld->clear_request_commit(req);
+ ld->clear_request_commit(req, cinfo);
return true;
}
static inline int
-pnfs_scan_commit_lists(struct inode *inode, int max, spinlock_t *lock)
+pnfs_scan_commit_lists(struct inode *inode, struct nfs_commit_info *cinfo,
+ int max)
{
- struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
- int ret;
-
- if (ld == NULL || ld->scan_commit_lists == NULL)
+ if (cinfo->ds == NULL || cinfo->ds->nwritten == 0)
return 0;
- ret = ld->scan_commit_lists(inode, max, lock);
- if (ret != 0)
- set_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags);
- return ret;
+ else
+ return NFS_SERVER(inode)->pnfs_curr_ld->scan_commit_lists(cinfo, max);
+}
+
+static inline void
+pnfs_recover_commit_reqs(struct inode *inode, struct list_head *list,
+ struct nfs_commit_info *cinfo)
+{
+ if (cinfo->ds == NULL || cinfo->ds->nwritten == 0)
+ return;
+ NFS_SERVER(inode)->pnfs_curr_ld->recover_commit_reqs(list, cinfo);
}
/* Should the pNFS client commit and return the layout upon a setattr */
@@ -327,6 +361,14 @@ static inline int pnfs_return_layout(struct inode *ino)
return 0;
}
+static inline bool
+pnfs_use_threshold(struct nfs4_threshold **dst, struct nfs4_threshold *src,
+ struct nfs_server *nfss)
+{
+ return (dst && src && src->bm != 0 &&
+ nfss->pnfs_curr_ld->id == src->l_type);
+}
+
#ifdef NFS_DEBUG
void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id);
#else
@@ -396,45 +438,74 @@ static inline void unset_pnfs_layoutdriver(struct nfs_server *s)
{
}
-static inline bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode)
+static inline bool pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
return false;
}
-static inline bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags)
+static inline bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags,
+ const struct nfs_pgio_completion_ops *compl_ops)
{
return false;
}
static inline int
-pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
+pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how,
+ struct nfs_commit_info *cinfo)
{
return PNFS_NOT_ATTEMPTED;
}
+static inline struct pnfs_ds_commit_info *
+pnfs_get_ds_info(struct inode *inode)
+{
+ return NULL;
+}
+
static inline bool
-pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo)
{
return false;
}
static inline bool
-pnfs_clear_request_commit(struct nfs_page *req)
+pnfs_clear_request_commit(struct nfs_page *req, struct nfs_commit_info *cinfo)
{
return false;
}
static inline int
-pnfs_scan_commit_lists(struct inode *inode, int max, spinlock_t *lock)
+pnfs_scan_commit_lists(struct inode *inode, struct nfs_commit_info *cinfo,
+ int max)
{
return 0;
}
+static inline void
+pnfs_recover_commit_reqs(struct inode *inode, struct list_head *list,
+ struct nfs_commit_info *cinfo)
+{
+}
+
static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync)
{
return 0;
}
+static inline bool
+pnfs_use_threshold(struct nfs4_threshold **dst, struct nfs4_threshold *src,
+ struct nfs_server *nfss)
+{
+ return false;
+}
+
+static inline struct nfs4_threshold *pnfs_mdsthreshold_alloc(void)
+{
+ return NULL;
+}
+
#endif /* CONFIG_NFS_V4_1 */
#endif /* FS_NFS_PNFS_H */
generated by cgit v0.10.2 at 2024-11-11 12:44:04 (GMT)