NFS: Fix the resolution problem with nfs_inode_attrs_need_update()

[linux-2.6-omap-h63xx.git] / fs / nfs / dir.c

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 49d5654128276f0d7ad5ab56394f021c64c9440a..4807074ada8c7564c7020f2a091ec5ca8e9f4614 100644 (file)
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -156,6 +156,7 @@ typedef struct {
        decode_dirent_t decode;
        int             plus;
        unsigned long   timestamp;
+       unsigned long   gencount;
        int             timestamp_valid;
 } nfs_readdir_descriptor_t;
 
@@ -177,7 +178,7 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
        struct file     *file = desc->file;
        struct inode    *inode = file->f_path.dentry->d_inode;
        struct rpc_cred *cred = nfs_file_cred(file);
-       unsigned long   timestamp;
+       unsigned long   timestamp, gencount;
        int             error;
 
        dfprintk(DIRCACHE, "NFS: %s: reading cookie %Lu into page %lu\n",
@@ -186,6 +187,7 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
 
  again:
        timestamp = jiffies;
+       gencount = nfs_inc_attr_generation_counter();
        error = NFS_PROTO(inode)->readdir(file->f_path.dentry, cred, desc->entry->cookie, page,
                                          NFS_SERVER(inode)->dtsize, desc->plus);
        if (error < 0) {
@@ -199,6 +201,7 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
                goto error;
        }
        desc->timestamp = timestamp;
+       desc->gencount = gencount;
        desc->timestamp_valid = 1;
        SetPageUptodate(page);
        /* Ensure consistent page alignment of the data.
@@ -224,9 +227,10 @@ int dir_decode(nfs_readdir_descriptor_t *desc)
        if (IS_ERR(p))
                return PTR_ERR(p);
        desc->ptr = p;
-       if (desc->timestamp_valid)
+       if (desc->timestamp_valid) {
                desc->entry->fattr->time_start = desc->timestamp;
-       else
+               desc->entry->fattr->gencount = desc->gencount;
+       } else
                desc->entry->fattr->valid &= ~NFS_ATTR_FATTR;
        return 0;
 }
@@ -471,7 +475,7 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
        struct rpc_cred *cred = nfs_file_cred(file);
        struct page     *page = NULL;
        int             status;
-       unsigned long   timestamp;
+       unsigned long   timestamp, gencount;
 
        dfprintk(DIRCACHE, "NFS: uncached_readdir() searching for cookie %Lu\n",
                        (unsigned long long)*desc->dir_cookie);
@@ -482,6 +486,7 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
                goto out;
        }
        timestamp = jiffies;
+       gencount = nfs_inc_attr_generation_counter();
        status = NFS_PROTO(inode)->readdir(file->f_path.dentry, cred,
                                                *desc->dir_cookie, page,
                                                NFS_SERVER(inode)->dtsize,
@@ -490,6 +495,7 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
        desc->ptr = kmap(page);         /* matching kunmap in nfs_do_filldir */
        if (status >= 0) {
                desc->timestamp = timestamp;
+               desc->gencount = gencount;
                desc->timestamp_valid = 1;
                if ((status = dir_decode(desc)) == 0)
                        desc->entry->prev_cookie = *desc->dir_cookie;