2022-03-01 20:28:07

by David Wysochanski

[permalink] [raw]
Subject: [PATCH 2/4] NFS: Rename fscache read and write pages functions

Rename NFS fscache functions in a more consistent fashion
to better reflect when we read from and write to fscache.

Signed-off-by: Dave Wysochanski <[email protected]>
---
fs/nfs/fscache.c | 6 +++---
fs/nfs/fscache.h | 27 ++++++++++-----------------
fs/nfs/read.c | 4 ++--
3 files changed, 15 insertions(+), 22 deletions(-)

diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index 81bd2770e640..62fbce28fe85 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -317,7 +317,7 @@ static int fscache_fallback_write_page(struct inode *inode, struct page *page,
/*
* Retrieve a page from fscache
*/
-int __nfs_readpage_from_fscache(struct inode *inode, struct page *page)
+int __nfs_fscache_read_page(struct inode *inode, struct page *page)
{
int ret;

@@ -351,7 +351,7 @@ int __nfs_readpage_from_fscache(struct inode *inode, struct page *page)
* Store a newly fetched page in fscache. We can be certain there's no page
* stored in the cache as yet otherwise we would've read it from there.
*/
-void __nfs_readpage_to_fscache(struct inode *inode, struct page *page)
+void __nfs_fscache_write_page(struct inode *inode, struct page *page)
{
int ret;

@@ -362,7 +362,7 @@ void __nfs_readpage_to_fscache(struct inode *inode, struct page *page)
ret = fscache_fallback_write_page(inode, page, true);

dfprintk(FSCACHE,
- "NFS: readpage_to_fscache: p:%p(i:%lu f:%lx) ret %d\n",
+ "NFS: nfs_fscache_write_page: p:%p(i:%lu f:%lx) ret %d\n",
page, page->index, page->flags, ret);

if (ret != 0) {
diff --git a/fs/nfs/fscache.h b/fs/nfs/fscache.h
index 4c7afaabbf9f..4e980cc04779 100644
--- a/fs/nfs/fscache.h
+++ b/fs/nfs/fscache.h
@@ -45,10 +45,8 @@ extern void nfs_fscache_clear_inode(struct inode *);
extern void nfs_fscache_open_file(struct inode *, struct file *);
extern void nfs_fscache_release_file(struct inode *, struct file *);

-extern int __nfs_readpage_from_fscache(struct inode *, struct page *);
-extern void __nfs_read_completion_to_fscache(struct nfs_pgio_header *hdr,
- unsigned long bytes);
-extern void __nfs_readpage_to_fscache(struct inode *, struct page *);
+extern int __nfs_fscache_read_page(struct inode *, struct page *);
+extern void __nfs_fscache_write_page(struct inode *, struct page *);

static inline int nfs_fscache_release_page(struct page *page, gfp_t gfp)
{
@@ -66,11 +64,10 @@ static inline int nfs_fscache_release_page(struct page *page, gfp_t gfp)
/*
* Retrieve a page from an inode data storage object.
*/
-static inline int nfs_readpage_from_fscache(struct inode *inode,
- struct page *page)
+static inline int nfs_fscache_read_page(struct inode *inode, struct page *page)
{
- if (NFS_I(inode)->fscache)
- return __nfs_readpage_from_fscache(inode, page);
+ if (nfs_i_fscache(inode))
+ return __nfs_fscache_read_page(inode, page);
return -ENOBUFS;
}

@@ -78,11 +75,11 @@ static inline int nfs_readpage_from_fscache(struct inode *inode,
* Store a page newly fetched from the server in an inode data storage object
* in the cache.
*/
-static inline void nfs_readpage_to_fscache(struct inode *inode,
+static inline void nfs_fscache_write_page(struct inode *inode,
struct page *page)
{
- if (NFS_I(inode)->fscache)
- __nfs_readpage_to_fscache(inode, page);
+ if (nfs_i_fscache(inode))
+ __nfs_fscache_write_page(inode, page);
}

static inline void nfs_fscache_update_auxdata(struct nfs_fscache_inode_auxdata *auxdata,
@@ -136,15 +133,11 @@ static inline int nfs_fscache_release_page(struct page *page, gfp_t gfp)
{
return 1; /* True: may release page */
}
-static inline int nfs_readpage_from_fscache(struct inode *inode,
- struct page *page)
+static inline int nfs_fscache_read_page(struct inode *inode, struct page *page)
{
return -ENOBUFS;
}
-static inline void nfs_readpage_to_fscache(struct inode *inode,
- struct page *page) {}
-
-
+static inline void nfs_fscache_write_page(struct inode *inode, struct page *page) {}
static inline void nfs_fscache_invalidate(struct inode *inode, int flags) {}

static inline const char *nfs_server_fscache_state(struct nfs_server *server)
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index eb00229c1a50..f84b6b73c45b 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -123,7 +123,7 @@ static void nfs_readpage_release(struct nfs_page *req, int error)
struct address_space *mapping = page_file_mapping(page);

if (PageUptodate(page))
- nfs_readpage_to_fscache(inode, page);
+ nfs_fscache_write_page(inode, page);
else if (!PageError(page) && !PagePrivate(page))
generic_error_remove_page(mapping, page);
unlock_page(page);
@@ -306,7 +306,7 @@ readpage_async_filler(void *data, struct page *page)
aligned_len = min_t(unsigned int, ALIGN(len, rsize), PAGE_SIZE);

if (!IS_SYNC(page->mapping->host)) {
- error = nfs_readpage_from_fscache(page->mapping->host, page);
+ error = nfs_fscache_read_page(page->mapping->host, page);
if (error == 0)
goto out_unlock;
}
--
2.27.1