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authorAl Viro2013-05-15 13:52:59 -0400
committerAl Viro2013-06-29 12:46:46 +0400
commit5c0ba4e0762e6dabd14a5c276652e2defec38de7 (patch)
treecc2c94d81a631b0656782e1f8299da3267871964 /fs/nfsd
parent83a8761142cb38536e9e88dfc2432d331ea4e257 (diff)
[readdir] introduce iterate_dir() and dir_context
iterate_dir(): new helper, replacing vfs_readdir(). struct dir_context: contains the readdir callback (and will get more stuff in it), embedded into whatever data that callback wants to deal with; eventually, we'll be passing it to ->readdir() replacement instead of (data,filldir) pair. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4recover.c13
-rw-r--r--fs/nfsd/vfs.c4
2 files changed, 12 insertions, 5 deletions
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 4e9a21db867a..4f8cc6ba7c28 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -263,7 +263,10 @@ nfsd4_list_rec_dir(recdir_func *f, struct nfsd_net *nn)
{
const struct cred *original_cred;
struct dentry *dir = nn->rec_file->f_path.dentry;
- LIST_HEAD(names);
+ struct {
+ struct dir_context ctx;
+ struct list_head names;
+ } ctx;
int status;
status = nfs4_save_creds(&original_cred);
@@ -276,11 +279,13 @@ nfsd4_list_rec_dir(recdir_func *f, struct nfsd_net *nn)
return status;
}
- status = vfs_readdir(nn->rec_file, nfsd4_build_namelist, &names);
+ INIT_LIST_HEAD(&ctx.names);
+ ctx.ctx.actor = nfsd4_build_namelist;
+ status = iterate_dir(nn->rec_file, &ctx.ctx);
mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
- while (!list_empty(&names)) {
+ while (!list_empty(&ctx.names)) {
struct name_list *entry;
- entry = list_entry(names.next, struct name_list, list);
+ entry = list_entry(ctx.names.next, struct name_list, list);
if (!status) {
struct dentry *dentry;
dentry = lookup_one_len(entry->name, dir, HEXDIR_LEN-1);
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 84ce601d8063..f939ba9bf8e8 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1912,6 +1912,7 @@ struct buffered_dirent {
};
struct readdir_data {
+ struct dir_context ctx;
char *dirent;
size_t used;
int full;
@@ -1949,6 +1950,7 @@ static __be32 nfsd_buffered_readdir(struct file *file, filldir_t func,
int size;
loff_t offset;
+ buf.ctx.actor = nfsd_buffered_filldir;
buf.dirent = (void *)__get_free_page(GFP_KERNEL);
if (!buf.dirent)
return nfserrno(-ENOMEM);
@@ -1963,7 +1965,7 @@ static __be32 nfsd_buffered_readdir(struct file *file, filldir_t func,
buf.used = 0;
buf.full = 0;
- host_err = vfs_readdir(file, nfsd_buffered_filldir, &buf);
+ host_err = iterate_dir(file, &buf.ctx);
if (buf.full)
host_err = 0;