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author | Suresh Jayaraman <sjayaraman@suse.de> | 2010-07-05 18:13:25 +0530 |
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committer | Steve French <sfrench@us.ibm.com> | 2010-08-02 12:40:37 +0000 |
commit | 56698236e1294848c63d4768673865ae5a9c69e0 (patch) | |
tree | ce6d43104a236595763759fe68c26ca3089abdd1 /fs/cifs/fscache.h | |
parent | 9dc06558c223bbc08290917ac44c25963bc09e43 (diff) | |
download | linux-56698236e1294848c63d4768673865ae5a9c69e0.tar.gz linux-56698236e1294848c63d4768673865ae5a9c69e0.tar.bz2 linux-56698236e1294848c63d4768673865ae5a9c69e0.zip |
cifs: read pages from FS-Cache
Read pages from a FS-Cache data storage object into a CIFS inode.
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/fscache.h')
-rw-r--r-- | fs/cifs/fscache.h | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/fs/cifs/fscache.h b/fs/cifs/fscache.h index 1a00d70bca97..79164c66797e 100644 --- a/fs/cifs/fscache.h +++ b/fs/cifs/fscache.h @@ -32,7 +32,6 @@ extern const struct fscache_cookie_def cifs_fscache_server_index_def; extern const struct fscache_cookie_def cifs_fscache_super_index_def; extern const struct fscache_cookie_def cifs_fscache_inode_object_def; - extern int cifs_fscache_register(void); extern void cifs_fscache_unregister(void); @@ -50,6 +49,11 @@ extern void cifs_fscache_reset_inode_cookie(struct inode *); extern void __cifs_fscache_invalidate_page(struct page *, struct inode *); extern int cifs_fscache_release_page(struct page *page, gfp_t gfp); +extern int __cifs_readpage_from_fscache(struct inode *, struct page *); +extern int __cifs_readpages_from_fscache(struct inode *, + struct address_space *, + struct list_head *, + unsigned *); extern void __cifs_readpage_to_fscache(struct inode *, struct page *); @@ -60,6 +64,26 @@ static inline void cifs_fscache_invalidate_page(struct page *page, __cifs_fscache_invalidate_page(page, inode); } +static inline int cifs_readpage_from_fscache(struct inode *inode, + struct page *page) +{ + if (CIFS_I(inode)->fscache) + return __cifs_readpage_from_fscache(inode, page); + + return -ENOBUFS; +} + +static inline int cifs_readpages_from_fscache(struct inode *inode, + struct address_space *mapping, + struct list_head *pages, + unsigned *nr_pages) +{ + if (CIFS_I(inode)->fscache) + return __cifs_readpages_from_fscache(inode, mapping, pages, + nr_pages); + return -ENOBUFS; +} + static inline void cifs_readpage_to_fscache(struct inode *inode, struct page *page) { @@ -90,6 +114,20 @@ static inline void cifs_fscache_release_page(struct page *page, gfp_t gfp) static inline int cifs_fscache_invalidate_page(struct page *page, struct inode *) {} +static inline int +cifs_readpage_from_fscache(struct inode *inode, struct page *page) +{ + return -ENOBUFS; +} + +static inline int cifs_readpages_from_fscache(struct inode *inode, + struct address_space *mapping, + struct list_head *pages, + unsigned *nr_pages) +{ + return -ENOBUFS; +} + static inline void cifs_readpage_to_fscache(struct inode *inode, struct page *page) {} |