From 85f2d6b44d7e83bdeab87df910127c6f296866cf Mon Sep 17 00:00:00 2001 From: Suresh Jayaraman Date: Mon, 5 Jul 2010 18:13:00 +0530 Subject: 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 Acked-by: David Howells Signed-off-by: Steve French --- fs/cifs/file.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'fs/cifs/file.c') diff --git a/fs/cifs/file.c b/fs/cifs/file.c index d302d941f9ac..f677ede766d1 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -2267,6 +2267,22 @@ out: return rc; } +static int cifs_release_page(struct page *page, gfp_t gfp) +{ + if (PagePrivate(page)) + return 0; + + return cifs_fscache_release_page(page, gfp); +} + +static void cifs_invalidate_page(struct page *page, unsigned long offset) +{ + struct cifsInodeInfo *cifsi = CIFS_I(page->mapping->host); + + if (offset == 0) + cifs_fscache_invalidate_page(page, &cifsi->vfs_inode); +} + static void cifs_oplock_break(struct slow_work *work) { @@ -2340,6 +2356,8 @@ const struct address_space_operations cifs_addr_ops = { .write_begin = cifs_write_begin, .write_end = cifs_write_end, .set_page_dirty = __set_page_dirty_nobuffers, + .releasepage = cifs_release_page, + .invalidatepage = cifs_invalidate_page, /* .sync_page = cifs_sync_page, */ /* .direct_IO = */ }; @@ -2356,6 +2374,8 @@ const struct address_space_operations cifs_addr_ops_smallbuf = { .write_begin = cifs_write_begin, .write_end = cifs_write_end, .set_page_dirty = __set_page_dirty_nobuffers, + .releasepage = cifs_release_page, + .invalidatepage = cifs_invalidate_page, /* .sync_page = cifs_sync_page, */ /* .direct_IO = */ }; -- cgit v1.2.3-55-g7522