summaryrefslogtreecommitdiff
path: root/fs/nfs/dir.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-11 15:11:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-11 15:11:56 -0800
commitb9d919a4ac6cf031b8e065f82ad8f1b0c9ed74b1 (patch)
tree3139b066396956fd3794df0cb1aa74dcc9f1cb28 /fs/nfs/dir.c
parent7c955fca3e1d8132982148267d9efcafae849bb6 (diff)
parent357f54d6b38252737116a6d631f6ac28ded018ed (diff)
Merge branch 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (89 commits) NFS fix the setting of exchange id flag NFS: Don't use vm_map_ram() in readdir NFSv4: Ensure continued open and lockowner name uniqueness NFS: Move cl_delegations to the nfs_server struct NFS: Introduce nfs_detach_delegations() NFS: Move cl_state_owners and related fields to the nfs_server struct NFS: Allow walking nfs_client.cl_superblocks list outside client.c pnfs: layout roc code pnfs: update nfs4_callback_recallany to handle layouts pnfs: add CB_LAYOUTRECALL handling pnfs: CB_LAYOUTRECALL xdr code pnfs: change lo refcounting to atomic_t pnfs: check that partial LAYOUTGET return is ignored pnfs: add layout to client list before sending rpc pnfs: serialize LAYOUTGET(openstateid) pnfs: layoutget rpc code cleanup pnfs: change how lsegs are removed from layout list pnfs: change layout state seqlock to a spinlock pnfs: add prefix to struct pnfs_layout_hdr fields pnfs: add prefix to struct pnfs_layout_segment fields ...
Diffstat (limited to 'fs/nfs/dir.c')
-rw-r--r--fs/nfs/dir.c72
1 files changed, 36 insertions, 36 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index d33da530097a..abe4f0c8dc5f 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -33,8 +33,8 @@
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/sched.h>
-#include <linux/vmalloc.h>
#include <linux/kmemleak.h>
+#include <linux/xattr.h>
#include "delegation.h"
#include "iostat.h"
@@ -125,9 +125,10 @@ const struct inode_operations nfs4_dir_inode_operations = {
.permission = nfs_permission,
.getattr = nfs_getattr,
.setattr = nfs_setattr,
- .getxattr = nfs4_getxattr,
- .setxattr = nfs4_setxattr,
- .listxattr = nfs4_listxattr,
+ .getxattr = generic_getxattr,
+ .setxattr = generic_setxattr,
+ .listxattr = generic_listxattr,
+ .removexattr = generic_removexattr,
};
#endif /* CONFIG_NFS_V4 */
@@ -172,7 +173,7 @@ struct nfs_cache_array {
struct nfs_cache_array_entry array[0];
};
-typedef __be32 * (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, struct nfs_server *, int);
+typedef int (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, int);
typedef struct {
struct file *file;
struct page *page;
@@ -378,14 +379,14 @@ error:
return error;
}
-/* Fill in an entry based on the xdr code stored in desc->page */
-static
-int xdr_decode(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry, struct xdr_stream *stream)
+static int xdr_decode(nfs_readdir_descriptor_t *desc,
+ struct nfs_entry *entry, struct xdr_stream *xdr)
{
- __be32 *p = desc->decode(stream, entry, NFS_SERVER(desc->file->f_path.dentry->d_inode), desc->plus);
- if (IS_ERR(p))
- return PTR_ERR(p);
+ int error;
+ error = desc->decode(xdr, entry, desc->plus);
+ if (error)
+ return error;
entry->fattr->time_start = desc->timestamp;
entry->fattr->gencount = desc->gencount;
return 0;
@@ -459,25 +460,26 @@ out:
/* Perform conversion from xdr to cache array */
static
int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry,
- void *xdr_page, struct page *page, unsigned int buflen)
+ struct page **xdr_pages, struct page *page, unsigned int buflen)
{
struct xdr_stream stream;
- struct xdr_buf buf;
- __be32 *ptr = xdr_page;
+ struct xdr_buf buf = {
+ .pages = xdr_pages,
+ .page_len = buflen,
+ .buflen = buflen,
+ .len = buflen,
+ };
+ struct page *scratch;
struct nfs_cache_array *array;
unsigned int count = 0;
int status;
- buf.head->iov_base = xdr_page;
- buf.head->iov_len = buflen;
- buf.tail->iov_len = 0;
- buf.page_base = 0;
- buf.page_len = 0;
- buf.buflen = buf.head->iov_len;
- buf.len = buf.head->iov_len;
-
- xdr_init_decode(&stream, &buf, ptr);
+ scratch = alloc_page(GFP_KERNEL);
+ if (scratch == NULL)
+ return -ENOMEM;
+ xdr_init_decode(&stream, &buf, NULL);
+ xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
do {
status = xdr_decode(desc, entry, &stream);
@@ -506,6 +508,8 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en
} else
status = PTR_ERR(array);
}
+
+ put_page(scratch);
return status;
}
@@ -521,7 +525,6 @@ static
void nfs_readdir_free_large_page(void *ptr, struct page **pages,
unsigned int npages)
{
- vm_unmap_ram(ptr, npages);
nfs_readdir_free_pagearray(pages, npages);
}
@@ -530,9 +533,8 @@ void nfs_readdir_free_large_page(void *ptr, struct page **pages,
* to nfs_readdir_free_large_page
*/
static
-void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
+int nfs_readdir_large_page(struct page **pages, unsigned int npages)
{
- void *ptr;
unsigned int i;
for (i = 0; i < npages; i++) {
@@ -541,13 +543,11 @@ void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
goto out_freepages;
pages[i] = page;
}
+ return 0;
- ptr = vm_map_ram(pages, npages, 0, PAGE_KERNEL);
- if (!IS_ERR_OR_NULL(ptr))
- return ptr;
out_freepages:
nfs_readdir_free_pagearray(pages, i);
- return NULL;
+ return -ENOMEM;
}
static
@@ -566,6 +566,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
entry.eof = 0;
entry.fh = nfs_alloc_fhandle();
entry.fattr = nfs_alloc_fattr();
+ entry.server = NFS_SERVER(inode);
if (entry.fh == NULL || entry.fattr == NULL)
goto out;
@@ -577,8 +578,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
memset(array, 0, sizeof(struct nfs_cache_array));
array->eof_index = -1;
- pages_ptr = nfs_readdir_large_page(pages, array_size);
- if (!pages_ptr)
+ status = nfs_readdir_large_page(pages, array_size);
+ if (status < 0)
goto out_release_array;
do {
unsigned int pglen;
@@ -587,7 +588,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
if (status < 0)
break;
pglen = status;
- status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
+ status = nfs_readdir_page_filler(desc, &entry, pages, page, pglen);
if (status < 0) {
if (status == -ENOSPC)
status = 0;
@@ -1221,7 +1222,7 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
goto out_unblock_sillyrename;
}
inode = nfs_fhget(dentry->d_sb, fhandle, fattr);
- res = (struct dentry *)inode;
+ res = ERR_CAST(inode);
if (IS_ERR(res))
goto out_unblock_sillyrename;
@@ -1355,8 +1356,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
if (nd->flags & LOOKUP_CREATE) {
attr.ia_mode = nd->intent.open.create_mode;
attr.ia_valid = ATTR_MODE;
- if (!IS_POSIXACL(dir))
- attr.ia_mode &= ~current_umask();
+ attr.ia_mode &= ~current_umask();
} else {
open_flags &= ~(O_EXCL | O_CREAT);
attr.ia_valid = 0;