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| author | Suresh Jayaraman <sjayaraman@suse.de> | 2010-07-05 18:13:00 +0530 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2010-08-02 12:40:36 +0000 |
| commit | 85f2d6b44d7e83bdeab87df910127c6f296866cf (patch) | |
| tree | 238389c1726e212a80336551809b44b0bbedec38 /fs/cifs/fscache.h | |
| parent | 9451a9a52f91a4c171cfaca2f6d7a2ce91867b8d (diff) | |
| download | lwn-85f2d6b44d7e83bdeab87df910127c6f296866cf.tar.gz lwn-85f2d6b44d7e83bdeab87df910127c6f296866cf.zip | |
cifs: FS-Cache page management
Takes care of invalidation and release of FS-Cache marked pages and also
invalidation of the FsCache page flag when the inode is removed.
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 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/cifs/fscache.h b/fs/cifs/fscache.h index 1008f4050835..5e18a21eee9d 100644 --- a/fs/cifs/fscache.h +++ b/fs/cifs/fscache.h @@ -48,6 +48,16 @@ extern void cifs_fscache_release_inode_cookie(struct inode *); extern void cifs_fscache_set_inode_cookie(struct inode *, struct file *); 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); + +static inline void cifs_fscache_invalidate_page(struct page *page, + struct inode *inode) +{ + if (PageFsCache(page)) + __cifs_fscache_invalidate_page(page, inode); +} + #else /* CONFIG_CIFS_FSCACHE */ static inline int cifs_fscache_register(void) { return 0; } static inline void cifs_fscache_unregister(void) {} @@ -64,7 +74,13 @@ static inline void cifs_fscache_release_inode_cookie(struct inode *inode) {} static inline void cifs_fscache_set_inode_cookie(struct inode *inode, struct file *filp) {} static inline void cifs_fscache_reset_inode_cookie(struct inode *inode) {} +static inline void cifs_fscache_release_page(struct page *page, gfp_t gfp) +{ + return 1; /* May release page */ +} +static inline int cifs_fscache_invalidate_page(struct page *page, + struct inode *) {} #endif /* CONFIG_CIFS_FSCACHE */ |