From: Suresh Jayaraman Subject: [PATCH 07/09] cifs: store pages into local cache Store pages from an CIFS inode into the data storage object associated with that inode. Signed-off-by: Suresh Jayaraman --- fs/cifs/file.c | 7 +++++++ fs/cifs/fscache.c | 11 +++++++++++ fs/cifs/fscache.h | 11 +++++++++++ 3 files changed, 29 insertions(+) Index: cifs-2.6/fs/cifs/file.c =================================================================== --- cifs-2.6.orig/fs/cifs/file.c +++ cifs-2.6/fs/cifs/file.c @@ -1948,6 +1948,9 @@ static void cifs_copy_cache_pages(struct SetPageUptodate(page); unlock_page(page); data += PAGE_CACHE_SIZE; + + /* add page to FS-Cache */ + cifs_readpage_to_fscache(mapping->host, page); } return; } @@ -2117,6 +2120,10 @@ static int cifs_readpage_worker(struct f flush_dcache_page(page); SetPageUptodate(page); + + /* send this page to the cache */ + cifs_readpage_to_fscache(file->f_path.dentry->d_inode, page); + rc = 0; io_error: Index: cifs-2.6/fs/cifs/fscache.c =================================================================== --- cifs-2.6.orig/fs/cifs/fscache.c +++ cifs-2.6/fs/cifs/fscache.c @@ -140,6 +140,17 @@ int cifs_fscache_release_page(struct pag return 1; } +void __cifs_readpage_to_fscache(struct inode *inode, struct page *page) +{ + int ret; + + cFYI(1, "CIFS: readpage_to_fscache(fsc: %p, p: %p, i: %p", + CIFS_I(inode)->fscache, page, inode); + ret = fscache_write_page(CIFS_I(inode)->fscache, page, GFP_KERNEL); + if (ret != 0) + fscache_uncache_page(CIFS_I(inode)->fscache, page); +} + void __cifs_fscache_invalidate_page(struct page *page, struct inode *inode) { struct cifsInodeInfo *cifsi = CIFS_I(inode); Index: cifs-2.6/fs/cifs/fscache.h =================================================================== --- cifs-2.6.orig/fs/cifs/fscache.h +++ cifs-2.6/fs/cifs/fscache.h @@ -51,6 +51,8 @@ extern void cifs_fscache_reset_inode_coo extern void __cifs_fscache_invalidate_page(struct page *, struct inode *); extern int cifs_fscache_release_page(struct page *page, gfp_t gfp); +extern void __cifs_readpage_to_fscache(struct inode *, struct page *); + static inline void cifs_fscache_invalidate_page(struct page *page, struct inode *inode) { @@ -58,6 +60,13 @@ static inline void cifs_fscache_invalida __cifs_fscache_invalidate_page(page, inode); } +static inline void cifs_readpage_to_fscache(struct inode *inode, + struct page *page) +{ + if (PageFsCache(page)) + __cifs_readpage_to_fscache(inode, page); +} + #else /* CONFIG_CIFS_FSCACHE */ static inline int cifs_fscache_register(void) { return 0; } static inline void cifs_fscache_unregister(void) {} @@ -81,6 +90,8 @@ static inline void cifs_fscache_release_ static inline int cifs_fscache_invalidate_page(struct page *page, struct inode *) {} +static inline void cifs_readpage_to_fscache(struct inode *inode, + struct page *page) {} #endif /* CONFIG_CIFS_FSCACHE */