The last real use of this tag was removed by
commit 7f2f12d963 NFS: Simplify nfs_wb_page()
Signed-off-by: Fred Isaman <iisaman@xxxxxxxxxx>
---
fs/nfs/pagelist.c | 32 +-------------------------------
fs/nfs/write.c | 20 +++++++++-----------
include/linux/nfs_page.h | 3 ---
3 files changed, 10 insertions(+), 45 deletions(-)
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 77a184e..fc5b54b 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -107,36 +107,6 @@ void nfs_unlock_request(struct nfs_page *req)
nfs_release_request(req);
}
-/**
- * nfs_set_page_tag_locked - Tag a request as locked
- * @req:
- */
-int nfs_set_page_tag_locked(struct nfs_page *req)
-{
- if (!nfs_lock_request_dontget(req))
- return 0;
- if (test_bit(PG_MAPPED, &req->wb_flags))
- radix_tree_tag_set(&NFS_I(req->wb_context->dentry->d_inode)->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_LOCKED);
- return 1;
-}
-
-/**
- * nfs_clear_page_tag_locked - Clear request tag and wake up sleepers
- */
-void nfs_clear_page_tag_locked(struct nfs_page *req)
-{
- if (test_bit(PG_MAPPED, &req->wb_flags)) {
- struct inode *inode = req->wb_context->dentry->d_inode;
- struct nfs_inode *nfsi = NFS_I(inode);
-
- spin_lock(&inode->i_lock);
- radix_tree_tag_clear(&nfsi->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_LOCKED);
- nfs_unlock_request(req);
- spin_unlock(&inode->i_lock);
- } else
- nfs_unlock_request(req);
-}
-
/*
* nfs_clear_request - Free up all resources allocated to the request
* @req:
@@ -469,7 +439,7 @@ int nfs_scan_list(struct nfs_inode *nfsi,
if (req->wb_index > idx_end)
goto out;
idx_start = req->wb_index + 1;
- if (nfs_set_page_tag_locked(req)) {
+ if (nfs_lock_request_dontget(req)) {
kref_get(&req->wb_kref);
radix_tree_tag_clear(&nfsi->nfs_page_tree,
req->wb_index, tag);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 0b1831d..fd8a4f0 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -236,10 +236,10 @@ static struct nfs_page *nfs_find_and_lock_request(struct page *page, bool nonblo
req = nfs_page_find_request_locked(page);
if (req == NULL)
break;
- if (nfs_set_page_tag_locked(req))
+ if (nfs_lock_request_dontget(req))
break;
/* Note: If we hold the page lock, as is the case in nfs_writepage,
- * then the call to nfs_set_page_tag_locked() will always
+ * then the call to nfs_lock_request_dontget() will always
* succeed provided that someone hasn't already marked the
* request as dirty (in which case we don't care).
*/
@@ -397,8 +397,6 @@ static int nfs_inode_add_request(struct inode *inode, struct nfs_page *req)
set_page_private(req->wb_page, (unsigned long)req);
nfsi->npages++;
kref_get(&req->wb_kref);
- radix_tree_tag_set(&nfsi->nfs_page_tree, req->wb_index,
- NFS_PAGE_TAG_LOCKED);
spin_unlock(&inode->i_lock);
radix_tree_preload_end();
out:
@@ -604,7 +602,7 @@ static struct nfs_page *nfs_try_to_update_request(struct inode *inode,
|| end < req->wb_offset)
goto out_flushme;
- if (nfs_set_page_tag_locked(req))
+ if (nfs_lock_request_dontget(req))
break;
/* The request is locked, so wait and then retry */
@@ -684,7 +682,7 @@ static int nfs_writepage_setup(struct nfs_open_context *ctx, struct page *page,
nfs_grow_file(page, offset, count);
nfs_mark_uptodate(page, req->wb_pgbase, req->wb_bytes);
nfs_mark_request_dirty(req);
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
return 0;
}
@@ -777,7 +775,7 @@ static void nfs_writepage_release(struct nfs_page *req,
if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req, data))
nfs_inode_remove_request(req);
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
nfs_end_page_writeback(page);
}
@@ -925,7 +923,7 @@ static void nfs_redirty_request(struct nfs_page *req)
struct page *page = req->wb_page;
nfs_mark_request_dirty(req);
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
nfs_end_page_writeback(page);
}
@@ -1199,7 +1197,7 @@ static void nfs_writeback_release_full(void *calldata)
remove_request:
nfs_inode_remove_request(req);
next:
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
nfs_end_page_writeback(page);
}
nfs_writedata_release(calldata);
@@ -1411,7 +1409,7 @@ void nfs_retry_commit(struct list_head *page_list,
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
BDI_RECLAIMABLE);
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
}
}
EXPORT_SYMBOL_GPL(nfs_retry_commit);
@@ -1486,7 +1484,7 @@ void nfs_commit_release_pages(struct nfs_write_data *data)
dprintk(" mismatch\n");
nfs_mark_request_dirty(req);
next:
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
}
}
EXPORT_SYMBOL_GPL(nfs_commit_release_pages);
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index ab465fe..65b563f 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -21,7 +21,6 @@
/*
* Valid flags for the radix tree
*/
-#define NFS_PAGE_TAG_LOCKED 0
#define NFS_PAGE_TAG_COMMIT 1
/*
@@ -106,8 +105,6 @@ extern bool nfs_generic_pg_test(struct nfs_pageio_descriptor *desc,
struct nfs_page *req);
extern int nfs_wait_on_request(struct nfs_page *);
extern void nfs_unlock_request(struct nfs_page *req);
-extern int nfs_set_page_tag_locked(struct nfs_page *req);
-extern void nfs_clear_page_tag_locked(struct nfs_page *req);
/*
* Lock the page of an asynchronous request without getting a new reference
--
1.7.2.1
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
