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authorSuresh Jayaraman <sjayaraman@suse.de>2010-07-05 18:13:00 +0530
committerSteve French <sfrench@us.ibm.com>2010-08-02 12:40:36 +0000
commit85f2d6b44d7e83bdeab87df910127c6f296866cf (patch)
tree238389c1726e212a80336551809b44b0bbedec38 /fs/cifs/fscache.c
parent9451a9a52f91a4c171cfaca2f6d7a2ce91867b8d (diff)
downloadop-kernel-dev-85f2d6b44d7e83bdeab87df910127c6f296866cf.zip
op-kernel-dev-85f2d6b44d7e83bdeab87df910127c6f296866cf.tar.gz
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.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
index 6c8d967..5dd9352 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);
+}
+
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