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| author | David Howells <dhowells@redhat.com> | 2013-09-04 21:10:39 +0400 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2013-09-18 19:17:03 +0400 |
| commit | 54afa99057ee2ffd3df0f5e891298bbbb65ea63c (patch) | |
| tree | bbe235d0310023e4c4eace892b1de10faee13c3f /fs/cifs/fscache.c | |
| parent | 62d228b8c676232eca579f91cc0782b060a59097 (diff) | |
| download | linux-54afa99057ee2ffd3df0f5e891298bbbb65ea63c.tar.xz | |
CIFS: FS-Cache: Uncache unread pages in cifs_readpages() before freeing them
In cifs_readpages(), we may decide we don't want to read a page after all -
but the page may already have passed through fscache_read_or_alloc_pages() and
thus have marks and reservations set. Thus we have to call
fscache_readpages_cancel() or fscache_uncache_page() on the pages we're
returning to clear the marks.
NFS, AFS and 9P should be unaffected by this as they call read_cache_pages()
which does the cleanup for you.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/fscache.c')
| -rw-r--r-- | fs/cifs/fscache.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c index 2f4bc5a58054..b3258f35e88a 100644 --- a/fs/cifs/fscache.c +++ b/fs/cifs/fscache.c @@ -223,6 +223,13 @@ void __cifs_readpage_to_fscache(struct inode *inode, struct page *page) fscache_uncache_page(CIFS_I(inode)->fscache, page); } +void __cifs_fscache_readpages_cancel(struct inode *inode, struct list_head *pages) +{ + cifs_dbg(FYI, "%s: (fsc: %p, i: %p)\n", + __func__, CIFS_I(inode)->fscache, inode); + fscache_readpages_cancel(CIFS_I(inode)->fscache, pages); +} + void __cifs_fscache_invalidate_page(struct page *page, struct inode *inode) { struct cifsInodeInfo *cifsi = CIFS_I(inode); |