pnfs-obj: Rename objlayout_io_state => objlayout_io_res

* All instances of objlayout_io_state => objlayout_io_res
* All instances of state => oir;
* All instances of ol_state => oir;

Big but nothing to it

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

3 files changed, 48 insertions, 47 deletions

diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
index 48eb91aad554..2347e0ac63e6 100644
--- a/fs/nfs/objlayout/objio_osd.c
+++ b/fs/nfs/objlayout/objio_osd.c
@@ -146,7 +146,7 @@ typedef int (*objio_done_fn)(struct objio_state *ios);
 
 struct objio_state {
         /* Generic layer */
-        struct objlayout_io_state ol_state;
+        struct objlayout_io_res oir;
 
         struct page **pages;
         unsigned pgbase;
@@ -422,7 +422,7 @@ objio_alloc_io_state(struct pnfs_layout_hdr *pnfs_layout_type,
         ios = &aos->objios;
 
         ios->layout = objio_seg;
-        objlayout_init_ioerrs(&aos->objios.ol_state, objio_seg->num_comps,
+        objlayout_init_ioerrs(&aos->objios.oir, objio_seg->num_comps,
                         aos->ioerrs, rpcdata, pnfs_layout_type);
 
         ios->pages = pages;
@@ -437,10 +437,9 @@ objio_alloc_io_state(struct pnfs_layout_hdr *pnfs_layout_type,
         return 0;
 }
 
-void objio_free_result(struct objlayout_io_state *ol_state)
+void objio_free_result(struct objlayout_io_res *oir)
 {
-        struct objio_state *ios = container_of(ol_state, struct objio_state,
-                                               ol_state);
+        struct objio_state *ios = container_of(oir, struct objio_state, oir);
 
         kfree(ios);
 }
@@ -519,7 +518,7 @@ static int _io_check(struct objio_state *ios, bool is_write)
 
                         continue; /* we recovered */
                 }
-                objlayout_io_set_result(&ios->ol_state, i,
+                objlayout_io_set_result(&ios->oir, i,
                                         &ios->layout->comps[i].oc_object_id,
                                         osd_pri_2_pnfs_err(osi.osd_err_pri),
                                         ios->per_dev[i].offset,
@@ -812,7 +811,7 @@ static int _read_done(struct objio_state *ios)
         else
                 status = ret;
 
-        objlayout_read_done(&ios->ol_state, status, ios->sync);
+        objlayout_read_done(&ios->oir, status, ios->sync);
         return ret;
 }
 
@@ -906,13 +905,13 @@ static int _write_done(struct objio_state *ios)
         if (likely(!ret)) {
                 /* FIXME: should be based on the OSD's persistence model
                  * See OSD2r05 Section 4.13 Data persistence model */
-                ios->ol_state.committed = NFS_FILE_SYNC;
+                ios->oir.committed = NFS_FILE_SYNC;
                 status = ios->length;
         } else {
                 status = ret;
         }
 
-        objlayout_write_done(&ios->ol_state, status, ios->sync);
+        objlayout_write_done(&ios->oir, status, ios->sync);
         return ret;
 }
 
diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c
index a82053ae5595..72074e3a04f9 100644
--- a/fs/nfs/objlayout/objlayout.c
+++ b/fs/nfs/objlayout/objlayout.c
@@ -179,16 +179,16 @@ void _fix_verify_io_params(struct pnfs_layout_segment *lseg,
  * I/O done common code
  */
 static void
-objlayout_iodone(struct objlayout_io_state *state)
+objlayout_iodone(struct objlayout_io_res *oir)
 {
-        if (likely(state->status >= 0)) {
-                objio_free_result(state);
+        if (likely(oir->status >= 0)) {
+                objio_free_result(oir);
         } else {
-                struct objlayout *objlay = state->objlay;
+                struct objlayout *objlay = oir->objlay;
 
                 spin_lock(&objlay->lock);
                 objlay->delta_space_valid = OBJ_DSU_INVALID;
-                list_add(&objlay->err_list, &state->err_list);
+                list_add(&objlay->err_list, &oir->err_list);
                 spin_unlock(&objlay->lock);
         }
 }
@@ -200,13 +200,13 @@ objlayout_iodone(struct objlayout_io_state *state)
  * the error for later reporting at layout-return.
  */
 void
-objlayout_io_set_result(struct objlayout_io_state *state, unsigned index,
+objlayout_io_set_result(struct objlayout_io_res *oir, unsigned index,
                         struct pnfs_osd_objid *pooid, int osd_error,
                         u64 offset, u64 length, bool is_write)
 {
-        struct pnfs_osd_ioerr *ioerr = &state->ioerrs[index];
+        struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[index];
 
-        BUG_ON(index >= state->num_comps);
+        BUG_ON(index >= oir->num_comps);
         if (osd_error) {
                 ioerr->oer_component = *pooid;
                 ioerr->oer_comp_offset = offset;
@@ -247,15 +247,15 @@ static void _rpc_read_complete(struct work_struct *work)
 }
 
 void
-objlayout_read_done(struct objlayout_io_state *state, ssize_t status, bool sync)
+objlayout_read_done(struct objlayout_io_res *oir, ssize_t status, bool sync)
 {
-        struct nfs_read_data *rdata = state->rpcdata;
+        struct nfs_read_data *rdata = oir->rpcdata;
 
-        state->status = rdata->task.tk_status = status;
+        oir->status = rdata->task.tk_status = status;
         if (status >= 0)
                 rdata->res.count = status;
-        objlayout_iodone(state);
-        /* must not use state after this point */
+        objlayout_iodone(oir);
+        /* must not use oir after this point */
 
         dprintk("%s: Return status=%zd eof=%d sync=%d\n", __func__,
                 status, rdata->res.eof, sync);
@@ -326,17 +326,16 @@ static void _rpc_write_complete(struct work_struct *work)
 }
 
 void
-objlayout_write_done(struct objlayout_io_state *state, ssize_t status,
-                     bool sync)
+objlayout_write_done(struct objlayout_io_res *oir, ssize_t status, bool sync)
 {
-        struct nfs_write_data *wdata = state->rpcdata;
+        struct nfs_write_data *wdata = oir->rpcdata;
 
-        state->status = wdata->task.tk_status = status;
+        oir->status = wdata->task.tk_status = status;
         if (status >= 0) {
                 wdata->res.count = status;
-                wdata->verf.committed = state->committed;
+                wdata->verf.committed = oir->committed;
         }
-        objlayout_iodone(state);
+        objlayout_iodone(oir);
         /* must not use oir after this point */
 
         dprintk("%s: Return status %zd committed %d sync=%d\n", __func__,
@@ -475,14 +474,14 @@ merge_ioerr(struct pnfs_osd_ioerr *dest_err,
 static void
 encode_accumulated_error(struct objlayout *objlay, __be32 *p)
 {
-        struct objlayout_io_state *state, *tmp;
+        struct objlayout_io_res *oir, *tmp;
         struct pnfs_osd_ioerr accumulated_err = {.oer_errno = 0};
 
-        list_for_each_entry_safe(state, tmp, &objlay->err_list, err_list) {
+        list_for_each_entry_safe(oir, tmp, &objlay->err_list, err_list) {
                 unsigned i;
 
-                for (i = 0; i < state->num_comps; i++) {
-                        struct pnfs_osd_ioerr *ioerr = &state->ioerrs[i];
+                for (i = 0; i < oir->num_comps; i++) {
+                        struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[i];
 
                         if (!ioerr->oer_errno)
                                 continue;
@@ -501,8 +500,8 @@ encode_accumulated_error(struct objlayout *objlay, __be32 *p)
 
                         merge_ioerr(&accumulated_err, ioerr);
                 }
-                list_del(&state->err_list);
-                objio_free_result(state);
+                list_del(&oir->err_list);
+                objio_free_result(oir);
         }
 
         pnfs_osd_xdr_encode_ioerr(p, &accumulated_err);
@@ -514,7 +513,7 @@ objlayout_encode_layoutreturn(struct pnfs_layout_hdr *pnfslay,
                               const struct nfs4_layoutreturn_args *args)
 {
         struct objlayout *objlay = OBJLAYOUT(pnfslay);
-        struct objlayout_io_state *state, *tmp;
+        struct objlayout_io_res *oir, *tmp;
         __be32 *start;
 
         dprintk("%s: Begin\n", __func__);
@@ -523,13 +522,13 @@ objlayout_encode_layoutreturn(struct pnfs_layout_hdr *pnfslay,
 
         spin_lock(&objlay->lock);
 
-        list_for_each_entry_safe(state, tmp, &objlay->err_list, err_list) {
+        list_for_each_entry_safe(oir, tmp, &objlay->err_list, err_list) {
                 __be32 *last_xdr = NULL, *p;
                 unsigned i;
                 int res = 0;
 
-                for (i = 0; i < state->num_comps; i++) {
-                        struct pnfs_osd_ioerr *ioerr = &state->ioerrs[i];
+                for (i = 0; i < oir->num_comps; i++) {
+                        struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[i];
 
                         if (!ioerr->oer_errno)
                                 continue;
@@ -553,7 +552,7 @@ objlayout_encode_layoutreturn(struct pnfs_layout_hdr *pnfslay,
                         }
 
                         last_xdr = p;
-                        pnfs_osd_xdr_encode_ioerr(p, &state->ioerrs[i]);
+                        pnfs_osd_xdr_encode_ioerr(p, &oir->ioerrs[i]);
                 }
 
                 /* TODO: use xdr_write_pages */
@@ -569,8 +568,8 @@ objlayout_encode_layoutreturn(struct pnfs_layout_hdr *pnfslay,
                         encode_accumulated_error(objlay, last_xdr);
                         goto loop_done;
                 }
-                list_del(&state->err_list);
-                objio_free_result(state);
+                list_del(&oir->err_list);
+                objio_free_result(oir);
         }
 loop_done:
         spin_unlock(&objlay->lock);
diff --git a/fs/nfs/objlayout/objlayout.h b/fs/nfs/objlayout/objlayout.h
index d7b2ccfa2132..8ec34727ed21 100644
--- a/fs/nfs/objlayout/objlayout.h
+++ b/fs/nfs/objlayout/objlayout.h
@@ -74,7 +74,7 @@ OBJLAYOUT(struct pnfs_layout_hdr *lo)
  * per-I/O operation state
  * embedded in objects provider io_state data structure
  */
-struct objlayout_io_state {
+struct objlayout_io_res {
         struct objlayout *objlay;
 
         void *rpcdata;
@@ -93,7 +93,7 @@ struct objlayout_io_state {
 };
 
 static inline
-void objlayout_init_ioerrs(struct objlayout_io_state *oir, unsigned num_comps,
+void objlayout_init_ioerrs(struct objlayout_io_res *oir, unsigned num_comps,
                         struct pnfs_osd_ioerr *ioerrs, void *rpcdata,
                         struct pnfs_layout_hdr *pnfs_layout_type)
 {
@@ -114,7 +114,10 @@ extern int objio_alloc_lseg(struct pnfs_layout_segment **outp,
         gfp_t gfp_flags);
 extern void objio_free_lseg(struct pnfs_layout_segment *lseg);
 
-extern void objio_free_result(struct objlayout_io_state *state);
+/* objio_free_result will free these @oir structs recieved from
+ * objlayout_{read,write}_done
+ */
+extern void objio_free_result(struct objlayout_io_res *oir);
 
 extern int objio_read_pagelist(struct nfs_read_data *rdata);
 extern int objio_write_pagelist(struct nfs_write_data *wdata, int how);
@@ -122,7 +125,7 @@ extern int objio_write_pagelist(struct nfs_write_data *wdata, int how);
 /*
  * callback API
  */
-extern void objlayout_io_set_result(struct objlayout_io_state *state,
+extern void objlayout_io_set_result(struct objlayout_io_res *oir,
                         unsigned index, struct pnfs_osd_objid *pooid,
                         int osd_error, u64 offset, u64 length, bool is_write);
 
@@ -141,9 +144,9 @@ objlayout_add_delta_space_used(struct objlayout *objlay, s64 space_used)
         spin_unlock(&objlay->lock);
 }
 
-extern void objlayout_read_done(struct objlayout_io_state *state,
+extern void objlayout_read_done(struct objlayout_io_res *oir,
                                 ssize_t status, bool sync);
-extern void objlayout_write_done(struct objlayout_io_state *state,
+extern void objlayout_write_done(struct objlayout_io_res *oir,
                                  ssize_t status, bool sync);
 
 extern int objlayout_get_deviceinfo(struct pnfs_layout_hdr *pnfslay,