From: Trond Myklebust trondmy@gmail.com
commit 0df68ced55443243951d02cc497be31fadf28173 upstream.
If we suffer a fatal error upon writing a file, which causes us to need to revalidate the entire mapping, then we should also revalidate the file size.
Fixes: d2ceb7e57086 ("NFS: Don't use page_file_mapping after removing the page") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Anna Schumaker Anna.Schumaker@Netapp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/nfs/write.c | 8 ++++++++ 1 file changed, 8 insertions(+)
--- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -243,7 +243,15 @@ out: /* A writeback failed: mark the page as bad, and invalidate the page cache */ static void nfs_set_pageerror(struct address_space *mapping) { + struct inode *inode = mapping->host; + nfs_zap_mapping(mapping->host, mapping); + /* Force file size revalidation */ + spin_lock(&inode->i_lock); + NFS_I(inode)->cache_validity |= NFS_INO_REVAL_FORCED | + NFS_INO_REVAL_PAGECACHE | + NFS_INO_INVALID_SIZE; + spin_unlock(&inode->i_lock); }
static void nfs_mapping_set_error(struct page *page, int error)