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authorFred Isaman <iisaman@netapp.com>2012-03-08 17:29:35 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-03-10 17:14:10 -0500
commitd6d6dc7cdfda7c8f49a89a7b7261846f319da6d1 (patch)
treefd26cf912b676f2752c16ccce1f410872a2a485c /fs/nfs/pnfs.h
parent9994b62b5621f88828d442fcd03fe3ce4c43344b (diff)
downloadop-kernel-dev-d6d6dc7cdfda7c8f49a89a7b7261846f319da6d1.zip
op-kernel-dev-d6d6dc7cdfda7c8f49a89a7b7261846f319da6d1.tar.gz
NFS: remove nfs_inode radix tree
The radix tree is only being used to compile lists of reqs needing commit. It is simpler to just put the reqs directly into a list. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h82
1 files changed, 42 insertions, 40 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 8088d51..ef92f67 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -94,11 +94,10 @@ struct pnfs_layoutdriver_type {
const struct nfs_pageio_ops *pg_read_ops;
const struct nfs_pageio_ops *pg_write_ops;
- /* Returns true if layoutdriver wants to divert this request to
- * driver's commit routine.
- */
- bool (*mark_pnfs_commit)(struct pnfs_layout_segment *lseg);
- struct list_head * (*choose_commit_list) (struct nfs_page *req);
+ struct list_head * (*choose_commit_list) (struct nfs_page *req,
+ struct pnfs_layout_segment *lseg);
+ struct pnfs_layout_segment *(*remove_commit_req) (struct nfs_page *req);
+ int (*scan_commit_lists) (struct inode *inode, int max);
int (*commit_pagelist)(struct inode *inode, struct list_head *mds_pages, int how);
/*
@@ -262,20 +261,6 @@ static inline int pnfs_enabled_sb(struct nfs_server *nfss)
return nfss->pnfs_curr_ld != NULL;
}
-static inline void
-pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
-{
- if (lseg) {
- struct pnfs_layoutdriver_type *ld;
-
- ld = NFS_SERVER(req->wb_page->mapping->host)->pnfs_curr_ld;
- if (ld->mark_pnfs_commit && ld->mark_pnfs_commit(lseg)) {
- set_bit(PG_PNFS_COMMIT, &req->wb_flags);
- req->wb_commit_lseg = get_lseg(lseg);
- }
- }
-}
-
static inline int
pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
{
@@ -285,26 +270,38 @@ pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
}
static inline struct list_head *
-pnfs_choose_commit_list(struct nfs_page *req, struct list_head *mds)
+pnfs_choose_commit_list(struct nfs_page *req, struct pnfs_layout_segment *lseg)
{
+ struct inode *inode = req->wb_context->dentry->d_inode;
struct list_head *rv;
- if (test_and_clear_bit(PG_PNFS_COMMIT, &req->wb_flags)) {
- struct inode *inode = req->wb_commit_lseg->pls_layout->plh_inode;
-
- set_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags);
- rv = NFS_SERVER(inode)->pnfs_curr_ld->choose_commit_list(req);
- /* matched by ref taken when PG_PNFS_COMMIT is set */
- put_lseg(req->wb_commit_lseg);
- } else
- rv = mds;
+ if (lseg && NFS_SERVER(inode)->pnfs_curr_ld->choose_commit_list)
+ rv = NFS_SERVER(inode)->pnfs_curr_ld->choose_commit_list(req, lseg);
+ else
+ rv = &NFS_I(inode)->commit_list;
return rv;
}
-static inline void pnfs_clear_request_commit(struct nfs_page *req)
+static inline struct pnfs_layout_segment *
+pnfs_clear_request_commit(struct nfs_page *req)
{
- if (test_and_clear_bit(PG_PNFS_COMMIT, &req->wb_flags))
- put_lseg(req->wb_commit_lseg);
+ struct inode *inode = req->wb_context->dentry->d_inode;
+
+ if (NFS_SERVER(inode)->pnfs_curr_ld &&
+ NFS_SERVER(inode)->pnfs_curr_ld->remove_commit_req)
+ return NFS_SERVER(inode)->pnfs_curr_ld->remove_commit_req(req);
+ else
+ return NULL;
+}
+
+static inline int
+pnfs_scan_commit_lists(struct inode *inode, int max)
+{
+ if (NFS_SERVER(inode)->pnfs_curr_ld &&
+ NFS_SERVER(inode)->pnfs_curr_ld->scan_commit_lists)
+ return NFS_SERVER(inode)->pnfs_curr_ld->scan_commit_lists(inode, max);
+ else
+ return 0;
}
/* Should the pNFS client commit and return the layout upon a setattr */
@@ -400,11 +397,6 @@ static inline bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, st
return false;
}
-static inline void
-pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
-{
-}
-
static inline int
pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
{
@@ -412,13 +404,23 @@ pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
}
static inline struct list_head *
-pnfs_choose_commit_list(struct nfs_page *req, struct list_head *mds)
+pnfs_choose_commit_list(struct nfs_page *req, struct pnfs_layout_segment *lseg)
{
- return mds;
+ struct inode *inode = req->wb_context->dentry->d_inode;
+
+ return &NFS_I(inode)->commit_list;
}
-static inline void pnfs_clear_request_commit(struct nfs_page *req)
+static inline struct pnfs_layout_segment *
+pnfs_clear_request_commit(struct nfs_page *req)
{
+ return NULL;
+}
+
+static inline int
+pnfs_scan_commit_lists(struct inode *inode, int max)
+{
+ return 0;
}
static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync)
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