Commit d0b6e0e3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

* git://git.linux-nfs.org/pub/linux/nfs-2.6:
  NFS: Kill the obsolete NFS_PARANOIA
  NFS: use __set_current_state()
  sunrpc: fix crash in rpc_malloc()
  NFS: Clean up NFSv4 XDR error message
  NFS: NFS client underestimates how large an NFSv4 SETATTR reply can be
  SUNRPC: Fix pointer arithmetic bug recently introduced in rpc_malloc/free
  NFS: Remove redundant check in nfs_check_verifier()
  NFS: Fix a jiffie wraparound issue
parents 5329571b 7a13e932
......@@ -38,7 +38,6 @@
#include "delegation.h"
#include "iostat.h"
#define NFS_PARANOIA 1
/* #define NFS_DEBUG_VERBOSE 1 */
static int nfs_opendir(struct inode *, struct file *);
......@@ -650,12 +649,15 @@ int nfs_fsync_dir(struct file *filp, struct dentry *dentry, int datasync)
*/
static int nfs_check_verifier(struct inode *dir, struct dentry *dentry)
{
unsigned long verf;
if (IS_ROOT(dentry))
return 1;
if ((NFS_I(dir)->cache_validity & NFS_INO_INVALID_ATTR) != 0
|| nfs_attribute_timeout(dir))
verf = (unsigned long)dentry->d_fsdata;
if (nfs_caches_unstable(dir)
|| verf != NFS_I(dir)->cache_change_attribute)
return 0;
return nfs_verify_change_attribute(dir, (unsigned long)dentry->d_fsdata);
return 1;
}
static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
......@@ -665,8 +667,7 @@ static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
static void nfs_refresh_verifier(struct dentry * dentry, unsigned long verf)
{
if (time_after(verf, (unsigned long)dentry->d_fsdata))
nfs_set_verifier(dentry, verf);
nfs_set_verifier(dentry, verf);
}
/*
......@@ -765,6 +766,10 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
nfs_inc_stats(dir, NFSIOS_DENTRYREVALIDATE);
inode = dentry->d_inode;
/* Revalidate parent directory attribute cache */
if (nfs_revalidate_inode(NFS_SERVER(dir), dir) < 0)
goto out_zap_parent;
if (!inode) {
if (nfs_neg_need_reval(dir, dentry, nd))
goto out_bad;
......@@ -778,10 +783,6 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
goto out_bad;
}
/* Revalidate parent directory attribute cache */
if (nfs_revalidate_inode(NFS_SERVER(dir), dir) < 0)
goto out_zap_parent;
/* Force a full look up iff the parent directory has changed */
if (nfs_check_verifier(dir, dentry)) {
if (nfs_lookup_verify_inode(inode, nd))
......@@ -1360,11 +1361,6 @@ static int nfs_sillyrename(struct inode *dir, struct dentry *dentry)
atomic_read(&dentry->d_count));
nfs_inc_stats(dir, NFSIOS_SILLYRENAME);
#ifdef NFS_PARANOIA
if (!dentry->d_inode)
printk("NFS: silly-renaming %s/%s, negative dentry??\n",
dentry->d_parent->d_name.name, dentry->d_name.name);
#endif
/*
* We don't allow a dentry to be silly-renamed twice.
*/
......@@ -1681,16 +1677,9 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
new_inode = NULL;
/* instantiate the replacement target */
d_instantiate(new_dentry, NULL);
} else if (atomic_read(&new_dentry->d_count) > 1) {
/* dentry still busy? */
#ifdef NFS_PARANOIA
printk("nfs_rename: target %s/%s busy, d_count=%d\n",
new_dentry->d_parent->d_name.name,
new_dentry->d_name.name,
atomic_read(&new_dentry->d_count));
#endif
} else if (atomic_read(&new_dentry->d_count) > 1)
/* dentry still busy? */
goto out;
}
} else
drop_nlink(new_inode);
......
......@@ -41,7 +41,6 @@
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_CLIENT
#define NFS_PARANOIA 1
/*
* get an NFS2/NFS3 root dentry from the root filehandle
......
......@@ -272,7 +272,7 @@ nfs_idmap_id(struct idmap *idmap, struct idmap_hashtable *h,
set_current_state(TASK_UNINTERRUPTIBLE);
mutex_unlock(&idmap->idmap_im_lock);
schedule();
current->state = TASK_RUNNING;
__set_current_state(TASK_RUNNING);
remove_wait_queue(&idmap->idmap_wq, &wq);
mutex_lock(&idmap->idmap_im_lock);
......@@ -333,7 +333,7 @@ nfs_idmap_name(struct idmap *idmap, struct idmap_hashtable *h,
set_current_state(TASK_UNINTERRUPTIBLE);
mutex_unlock(&idmap->idmap_im_lock);
schedule();
current->state = TASK_RUNNING;
__set_current_state(TASK_RUNNING);
remove_wait_queue(&idmap->idmap_wq, &wq);
mutex_lock(&idmap->idmap_im_lock);
......
......@@ -48,7 +48,6 @@
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_VFS
#define NFS_PARANOIA 1
static void nfs_invalidate_inode(struct inode *);
static int nfs_update_inode(struct inode *, struct nfs_fattr *);
......@@ -1075,10 +1074,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
/*
* Big trouble! The inode has become a different object.
*/
#ifdef NFS_PARANOIA
printk(KERN_DEBUG "%s: inode %ld mode changed, %07o to %07o\n",
__FUNCTION__, inode->i_ino, inode->i_mode, fattr->mode);
#endif
out_err:
/*
* No need to worry about unhashing the dentry, as the
......
......@@ -26,7 +26,6 @@
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_XDR
/* #define NFS_PARANOIA 1 */
/* Mapping from NFS error code to "errno" error code. */
#define errno_NFSERR_IO EIO
......
......@@ -224,7 +224,8 @@ static int nfs4_stat_to_errno(int);
encode_getattr_maxsz)
#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 3)
op_decode_hdr_maxsz + 3 + \
nfs4_fattr_maxsz)
#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_fsinfo_maxsz)
......@@ -2079,9 +2080,11 @@ out:
#define READ_BUF(nbytes) do { \
p = xdr_inline_decode(xdr, nbytes); \
if (!p) { \
printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \
__FUNCTION__, __LINE__); \
if (unlikely(!p)) { \
printk(KERN_INFO "%s: prematurely hit end of receive" \
" buffer\n", __FUNCTION__); \
printk(KERN_INFO "%s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \
__FUNCTION__, xdr->p, nbytes, xdr->end); \
return -EIO; \
} \
} while (0)
......
......@@ -20,8 +20,6 @@
#include "internal.h"
#define NFS_PARANOIA 1
static struct kmem_cache *nfs_page_cachep;
static inline struct nfs_page *
......@@ -167,11 +165,6 @@ nfs_release_request(struct nfs_page *req)
if (!atomic_dec_and_test(&req->wb_count))
return;
#ifdef NFS_PARANOIA
BUG_ON (!list_empty(&req->wb_list));
BUG_ON (NFS_WBACK_BUSY(req));
#endif
/* Release struct file or cached credential */
nfs_clear_request(req);
put_nfs_open_context(req->wb_context);
......
......@@ -736,6 +736,11 @@ static void rpc_async_schedule(struct work_struct *work)
__rpc_execute(container_of(work, struct rpc_task, u.tk_work));
}
struct rpc_buffer {
size_t len;
char data[];
};
/**
* rpc_malloc - allocate an RPC buffer
* @task: RPC task that will use this buffer
......@@ -754,18 +759,22 @@ static void rpc_async_schedule(struct work_struct *work)
*/
void *rpc_malloc(struct rpc_task *task, size_t size)
{
size_t *buf;
struct rpc_buffer *buf;
gfp_t gfp = RPC_IS_SWAPPER(task) ? GFP_ATOMIC : GFP_NOWAIT;
size += sizeof(size_t);
size += sizeof(struct rpc_buffer);
if (size <= RPC_BUFFER_MAXSIZE)
buf = mempool_alloc(rpc_buffer_mempool, gfp);
else
buf = kmalloc(size, gfp);
*buf = size;
if (!buf)
return NULL;
buf->len = size;
dprintk("RPC: %5u allocated buffer of size %zu at %p\n",
task->tk_pid, size, buf);
return ++buf;
return &buf->data;
}
/**
......@@ -775,15 +784,18 @@ void *rpc_malloc(struct rpc_task *task, size_t size)
*/
void rpc_free(void *buffer)
{
size_t size, *buf = buffer;
size_t size;
struct rpc_buffer *buf;
if (!buffer)
return;
size = *buf;
buf--;
buf = container_of(buffer, struct rpc_buffer, data);
size = buf->len;
dprintk("RPC: freeing buffer of size %zu at %p\n",
size, buf);
if (size <= RPC_BUFFER_MAXSIZE)
mempool_free(buf, rpc_buffer_mempool);
else
......
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