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Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6
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* git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (53 commits)
  NFS: Fix a resolution problem with nfs_inode->cache_change_attribute
  NFS: Fix the resolution problem with nfs_inode_attrs_need_update()
  NFS: Changes to inode->i_nlinks must set the NFS_INO_INVALID_ATTR flag
  RPC/RDMA: ensure connection attempt is complete before signalling.
  RPC/RDMA: correct the reconnect timer backoff
  RPC/RDMA: optionally emit useful transport info upon connect/disconnect.
  RPC/RDMA: reformat a debug printk to keep lines together.
  RPC/RDMA: harden connection logic against missing/late rdma_cm upcalls.
  RPC/RDMA: fix connect/reconnect resource leak.
  RPC/RDMA: return a consistent error, when connect fails.
  RPC/RDMA: adhere to protocol for unpadded client trailing write chunks.
  RPC/RDMA: avoid an oops due to disconnect racing with async upcalls.
  RPC/RDMA: maintain the RPC task bytes-sent statistic.
  RPC/RDMA: suppress retransmit on RPC/RDMA clients.
  RPC/RDMA: fix connection IRD/ORD setting
  RPC/RDMA: support FRMR client memory registration.
  RPC/RDMA: check selected memory registration mode at runtime.
  RPC/RDMA: add data types and new FRMR memory registration enum.
  RPC/RDMA: refactor the inline memory registration code.
  NFS: fix nfs_parse_ip_address() corner case
  ...
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@torvalds
torvalds committed Oct 16, 2008
2 parents 8cde1ad + 6925bac commit 52ad096
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Showing 26 changed files with 955 additions and 500 deletions.
5 changes: 2 additions & 3 deletions fs/nfs/client.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -675,7 +675,7 @@ static int nfs_init_server(struct nfs_server *server,
server->nfs_client = clp;

/* Initialise the client representation from the mount data */
server->flags = data->flags & NFS_MOUNT_FLAGMASK;
server->flags = data->flags;

if (data->rsize)
server->rsize = nfs_block_size(data->rsize, NULL);
Expand Down Expand Up @@ -850,7 +850,6 @@ static struct nfs_server *nfs_alloc_server(void)
INIT_LIST_HEAD(&server->client_link);
INIT_LIST_HEAD(&server->master_link);

init_waitqueue_head(&server->active_wq);
atomic_set(&server->active, 0);

server->io_stats = nfs_alloc_iostats();
Expand Down Expand Up @@ -1073,7 +1072,7 @@ static int nfs4_init_server(struct nfs_server *server,
goto error;

/* Initialise the client representation from the mount data */
server->flags = data->flags & NFS_MOUNT_FLAGMASK;
server->flags = data->flags;
server->caps |= NFS_CAP_ATOMIC_OPEN;

if (data->rsize)
Expand Down
20 changes: 15 additions & 5 deletions fs/nfs/dir.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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;

Expand All @@ -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",
Expand All @@ -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) {
Expand All @@ -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.
Expand All @@ -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;
}
Expand Down Expand Up @@ -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);
Expand All @@ -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,
Expand All @@ -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;
Expand Down Expand Up @@ -655,7 +661,7 @@ static int nfs_fsync_dir(struct file *filp, struct dentry *dentry, int datasync)
*/
void nfs_force_lookup_revalidate(struct inode *dir)
{
NFS_I(dir)->cache_change_attribute = jiffies;
NFS_I(dir)->cache_change_attribute++;
}

/*
Expand All @@ -667,6 +673,8 @@ static int nfs_check_verifier(struct inode *dir, struct dentry *dentry)
{
if (IS_ROOT(dentry))
return 1;
if (NFS_SERVER(dir)->flags & NFS_MOUNT_LOOKUP_CACHE_NONE)
return 0;
if (!nfs_verify_change_attribute(dir, dentry->d_time))
return 0;
/* Revalidate nfsi->cache_change_attribute before we declare a match */
Expand Down Expand Up @@ -750,6 +758,8 @@ int nfs_neg_need_reval(struct inode *dir, struct dentry *dentry,
/* Don't revalidate a negative dentry if we're creating a new file */
if (nd != NULL && nfs_lookup_check_intent(nd, LOOKUP_CREATE) != 0)
return 0;
if (NFS_SERVER(dir)->flags & NFS_MOUNT_LOOKUP_CACHE_NONEG)
return 1;
return !nfs_check_verifier(dir, dentry);
}

Expand Down
18 changes: 7 additions & 11 deletions fs/nfs/file.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -188,13 +188,16 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
/* origin == SEEK_END => we must revalidate the cached file length */
if (origin == SEEK_END) {
struct inode *inode = filp->f_mapping->host;

int retval = nfs_revalidate_file_size(inode, filp);
if (retval < 0)
return (loff_t)retval;
}
lock_kernel(); /* BKL needed? */
loff = generic_file_llseek_unlocked(filp, offset, origin);
unlock_kernel();

spin_lock(&inode->i_lock);
loff = generic_file_llseek_unlocked(filp, offset, origin);
spin_unlock(&inode->i_lock);
} else
loff = generic_file_llseek_unlocked(filp, offset, origin);
return loff;
}

Expand Down Expand Up @@ -699,13 +702,6 @@ static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl)
filp->f_path.dentry->d_name.name,
fl->fl_type, fl->fl_flags);

/*
* No BSD flocks over NFS allowed.
* Note: we could try to fake a POSIX lock request here by
* using ((u32) filp | 0x80000000) or some such as the pid.
* Not sure whether that would be unique, though, or whether
* that would break in other places.
*/
if (!(fl->fl_flags & FL_FLOCK))
return -ENOLCK;

Expand Down
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