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Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h131
1 files changed, 63 insertions, 68 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 2c6c80503ba..4fb309a2b4c 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -62,9 +62,7 @@ enum {
NFS_LAYOUT_RW_FAILED, /* get rw layout failed stop trying */
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 */
- NFS_LAYOUT_RETURNED, /* layout has already been returned */
+ NFS_LAYOUT_RETURN, /* Return this layout ASAP */
};
enum layoutdriver_policy_flags {
@@ -115,8 +113,8 @@ struct pnfs_layoutdriver_type {
* Return PNFS_ATTEMPTED to indicate the layout code has attempted
* I/O, else return PNFS_NOT_ATTEMPTED to fall back to normal NFS
*/
- enum pnfs_try_status (*read_pagelist) (struct nfs_read_data *nfs_data);
- enum pnfs_try_status (*write_pagelist) (struct nfs_write_data *nfs_data, int how);
+ enum pnfs_try_status (*read_pagelist) (struct nfs_pgio_data *nfs_data);
+ enum pnfs_try_status (*write_pagelist) (struct nfs_pgio_data *nfs_data, int how);
void (*free_deviceid_node) (struct nfs4_deviceid_node *);
@@ -134,12 +132,13 @@ struct pnfs_layoutdriver_type {
struct pnfs_layout_hdr {
atomic_t plh_refcount;
struct list_head plh_layouts; /* other client layouts */
- struct list_head plh_bulk_recall; /* clnt list of bulk recalls */
+ struct list_head plh_bulk_destroy;
struct list_head plh_segs; /* layout segments list */
nfs4_stateid plh_stateid;
atomic_t plh_outstanding; /* number of RPCs out */
unsigned long plh_block_lgets; /* block LAYOUTGET if >0 */
u32 plh_barrier; /* ignore lower seqids */
+ unsigned long plh_retry_timestamp;
unsigned long plh_flags;
loff_t plh_lwb; /* last write byte for layoutcommit */
struct rpc_cred *plh_lc_cred; /* layoutcommit cred */
@@ -150,9 +149,10 @@ struct pnfs_device {
struct nfs4_deviceid dev_id;
unsigned int layout_type;
unsigned int mincount;
+ unsigned int maxcount; /* gdia_maxcount */
struct page **pages;
unsigned int pgbase;
- unsigned int pglen;
+ unsigned int pglen; /* reply buffer length */
};
#define NFS4_PNFS_GETDEVLIST_MAXNUM 16
@@ -171,51 +171,55 @@ extern int nfs4_proc_getdevicelist(struct nfs_server *server,
const struct nfs_fh *fh,
struct pnfs_devicelist *devlist);
extern int nfs4_proc_getdeviceinfo(struct nfs_server *server,
- struct pnfs_device *dev);
-extern int nfs4_proc_layoutget(struct nfs4_layoutget *lgp);
+ struct pnfs_device *dev,
+ struct rpc_cred *cred);
+extern struct pnfs_layout_segment* nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags);
extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp);
/* pnfs.c */
-void get_layout_hdr(struct pnfs_layout_hdr *lo);
-void put_lseg(struct pnfs_layout_segment *lseg);
-
-void pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *,
- const struct nfs_pgio_completion_ops *);
-void pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *,
- int, const struct nfs_pgio_completion_ops *);
+void pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo);
+void pnfs_put_lseg(struct pnfs_layout_segment *lseg);
void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32);
void unset_pnfs_layoutdriver(struct nfs_server *);
void pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *, struct nfs_page *);
int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc);
-void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *, struct nfs_page *);
+void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio,
+ struct nfs_page *req, u64 wb_size);
int pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc);
-bool pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, struct nfs_page *req);
+size_t pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio,
+ struct nfs_page *prev, struct nfs_page *req);
void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg);
-int pnfs_layout_process(struct nfs4_layoutget *lgp);
+struct pnfs_layout_segment *pnfs_layout_process(struct nfs4_layoutget *lgp);
void pnfs_free_lseg_list(struct list_head *tmp_list);
void pnfs_destroy_layout(struct nfs_inode *);
void pnfs_destroy_all_layouts(struct nfs_client *);
-void put_layout_hdr(struct pnfs_layout_hdr *lo);
+int pnfs_destroy_layouts_byfsid(struct nfs_client *clp,
+ struct nfs_fsid *fsid,
+ bool is_recall);
+int pnfs_destroy_layouts_byclid(struct nfs_client *clp,
+ bool is_recall);
+void pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo);
void pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo,
const nfs4_stateid *new,
bool update_barrier);
int pnfs_choose_layoutget_stateid(nfs4_stateid *dst,
struct pnfs_layout_hdr *lo,
struct nfs4_state *open_state);
-int mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
+int pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
struct list_head *tmp_list,
struct pnfs_layout_range *recall_range);
bool pnfs_roc(struct inode *ino);
void pnfs_roc_release(struct inode *ino);
void pnfs_roc_set_barrier(struct inode *ino, u32 barrier);
-bool pnfs_roc_drain(struct inode *ino, u32 *barrier);
-void pnfs_set_layoutcommit(struct nfs_write_data *wdata);
+bool pnfs_roc_drain(struct inode *ino, u32 *barrier, struct rpc_task *task);
+void pnfs_set_layoutcommit(struct nfs_pgio_data *wdata);
void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data);
int pnfs_layoutcommit_inode(struct inode *inode, bool sync);
int _pnfs_return_layout(struct inode *);
-void pnfs_ld_write_done(struct nfs_write_data *);
-void pnfs_ld_read_done(struct nfs_read_data *);
+int pnfs_commit_and_return_layout(struct inode *);
+void pnfs_ld_write_done(struct nfs_pgio_data *);
+void pnfs_ld_read_done(struct nfs_pgio_data *);
struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino,
struct nfs_open_context *ctx,
loff_t pos,
@@ -225,14 +229,17 @@ struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino,
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);
+ const struct nfs_pgio_completion_ops *compl_ops,
+ struct nfs_direct_req *dreq);
int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head,
- const struct nfs_pgio_completion_ops *compl_ops);
+ const struct nfs_pgio_completion_ops *compl_ops,
+ struct nfs_direct_req *dreq);
struct nfs4_threshold *pnfs_mdsthreshold_alloc(void);
/* nfs4_deviceid_flags */
enum {
NFS_DEVICEID_INVALID = 0, /* set when MDS clientid recalled */
+ NFS_DEVICEID_UNAVAILABLE, /* device temporarily unavailable */
};
/* pnfs_dev.c */
@@ -242,6 +249,7 @@ struct nfs4_deviceid_node {
const struct pnfs_layoutdriver_type *ld;
const struct nfs_client *nfs_client;
unsigned long flags;
+ unsigned long timestamp_unavailable;
struct nfs4_deviceid deviceid;
atomic_t ref;
};
@@ -254,38 +262,16 @@ void nfs4_init_deviceid_node(struct nfs4_deviceid_node *,
const struct nfs4_deviceid *);
struct nfs4_deviceid_node *nfs4_insert_deviceid_node(struct nfs4_deviceid_node *);
bool nfs4_put_deviceid_node(struct nfs4_deviceid_node *);
+void nfs4_mark_deviceid_unavailable(struct nfs4_deviceid_node *node);
+bool nfs4_test_deviceid_unavailable(struct nfs4_deviceid_node *node);
void nfs4_deviceid_purge_client(const struct nfs_client *);
-static inline void
-pnfs_mark_layout_returned(struct pnfs_layout_hdr *lo)
-{
- set_bit(NFS_LAYOUT_RETURNED, &lo->plh_flags);
-}
-
-static inline void
-pnfs_clear_layout_returned(struct pnfs_layout_hdr *lo)
-{
- clear_bit(NFS_LAYOUT_RETURNED, &lo->plh_flags);
-}
-
-static inline bool
-pnfs_test_layout_returned(struct pnfs_layout_hdr *lo)
-{
- return test_bit(NFS_LAYOUT_RETURNED, &lo->plh_flags);
-}
-
-static inline int lo_fail_bit(u32 iomode)
-{
- return iomode == IOMODE_RW ?
- NFS_LAYOUT_RW_FAILED : NFS_LAYOUT_RO_FAILED;
-}
-
static inline struct pnfs_layout_segment *
-get_lseg(struct pnfs_layout_segment *lseg)
+pnfs_get_lseg(struct pnfs_layout_segment *lseg)
{
if (lseg) {
atomic_inc(&lseg->pls_refcount);
- smp_mb__after_atomic_inc();
+ smp_mb__after_atomic();
}
return lseg;
}
@@ -369,6 +355,15 @@ pnfs_ld_layoutret_on_setattr(struct inode *inode)
PNFS_LAYOUTRET_ON_SETATTR;
}
+static inline bool
+pnfs_layoutcommit_outstanding(struct inode *inode)
+{
+ struct nfs_inode *nfsi = NFS_I(inode);
+
+ return test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags) != 0 ||
+ test_bit(NFS_INO_LAYOUTCOMMITTING, &nfsi->flags) != 0;
+}
+
static inline int pnfs_return_layout(struct inode *ino)
{
struct nfs_inode *nfsi = NFS_I(ino);
@@ -406,12 +401,12 @@ static inline void pnfs_destroy_layout(struct nfs_inode *nfsi)
}
static inline struct pnfs_layout_segment *
-get_lseg(struct pnfs_layout_segment *lseg)
+pnfs_get_lseg(struct pnfs_layout_segment *lseg)
{
return NULL;
}
-static inline void put_lseg(struct pnfs_layout_segment *lseg)
+static inline void pnfs_put_lseg(struct pnfs_layout_segment *lseg)
{
}
@@ -420,6 +415,11 @@ static inline int pnfs_return_layout(struct inode *ino)
return 0;
}
+static inline int pnfs_commit_and_return_layout(struct inode *inode)
+{
+ return 0;
+}
+
static inline bool
pnfs_ld_layoutret_on_setattr(struct inode *inode)
{
@@ -443,7 +443,7 @@ pnfs_roc_set_barrier(struct inode *ino, u32 barrier)
}
static inline bool
-pnfs_roc_drain(struct inode *ino, u32 *barrier)
+pnfs_roc_drain(struct inode *ino, u32 *barrier, struct rpc_task *task)
{
return false;
}
@@ -457,18 +457,6 @@ static inline void unset_pnfs_layoutdriver(struct nfs_server *s)
{
}
-static inline void pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode,
- const struct nfs_pgio_completion_ops *compl_ops)
-{
- nfs_pageio_init_read(pgio, inode, compl_ops);
-}
-
-static inline void pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode, int ioflags,
- const struct nfs_pgio_completion_ops *compl_ops)
-{
- nfs_pageio_init_write(pgio, inode, ioflags, compl_ops);
-}
-
static inline int
pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how,
struct nfs_commit_info *cinfo)
@@ -520,6 +508,13 @@ pnfs_use_threshold(struct nfs4_threshold **dst, struct nfs4_threshold *src,
return false;
}
+static inline bool
+pnfs_layoutcommit_outstanding(struct inode *inode)
+{
+ return false;
+}
+
+
static inline struct nfs4_threshold *pnfs_mdsthreshold_alloc(void)
{
return NULL;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 15:24:57 +0000