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| author | Suresh Jayaraman <sjayaraman@suse.de> | 2010-07-05 14:43:00 +0200 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2010-08-02 14:40:36 +0200 |
| commit | 85f2d6b44d7e83bdeab87df910127c6f296866cf (patch) | |
| tree | 238389c1726e212a80336551809b44b0bbedec38 /fs/cifs/fscache.c | |
| parent | cifs: define inode-level cache object and register them (diff) | |
| download | linux-85f2d6b44d7e83bdeab87df910127c6f296866cf.tar.xz linux-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.c')
| -rw-r--r-- | fs/cifs/fscache.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c index 6c8d96758ddb..5dd935280049 100644 --- a/fs/cifs/fscache.c +++ b/fs/cifs/fscache.c @@ -124,3 +124,29 @@ void cifs_fscache_reset_inode_cookie(struct inode *inode) cifsi->fscache, old); } } + +int cifs_fscache_release_page(struct page *page, gfp_t gfp) +{ + if (PageFsCache(page)) { + struct inode *inode = page->mapping->host; + struct cifsInodeInfo *cifsi = CIFS_I(inode); + + cFYI(1, "CIFS: fscache release page (0x%p/0x%p)", + page, cifsi->fscache); + if (!fscache_maybe_release_page(cifsi->fscache, page, gfp)) + return 0; + } + + return 1; +} + +void __cifs_fscache_invalidate_page(struct page *page, struct inode *inode) +{ + struct cifsInodeInfo *cifsi = CIFS_I(inode); + struct fscache_cookie *cookie = cifsi->fscache; + + cFYI(1, "CIFS: fscache invalidatepage (0x%p/0x%p)", page, cookie); + fscache_wait_on_page_write(cookie, page); + fscache_uncache_page(cookie, page); +} + |