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authorPaul Mackerras <paulus@samba.org>2005-10-22 16:51:34 +1000
committerPaul Mackerras <paulus@samba.org>2005-10-22 16:51:34 +1000
commit985990137e81ca9fd6561cd0f7d1a9695ec57d5a (patch)
tree7a67493285623a7356ba7065cada6728993d1a3b /fs
parent834289447542b7ec55c0847486616d4d53ddf891 (diff)
parent63172cb3d5ef762dcb60a292bc7f016b85cf6e1f (diff)
Merge changes from linux-2.6 by hand
Diffstat (limited to 'fs')
-rw-r--r--fs/aio.c26
-rw-r--r--fs/nfs/delegation.c4
-rw-r--r--fs/nfs/file.c3
-rw-r--r--fs/nfs/inode.c9
-rw-r--r--fs/proc/base.c12
-rw-r--r--fs/proc/nommu.c1
6 files changed, 22 insertions, 33 deletions
diff --git a/fs/aio.c b/fs/aio.c
index d6b1551342b..9fe7216457d 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -398,7 +398,7 @@ static struct kiocb fastcall *__aio_get_req(struct kioctx *ctx)
if (unlikely(!req))
return NULL;
- req->ki_flags = 1 << KIF_LOCKED;
+ req->ki_flags = 0;
req->ki_users = 2;
req->ki_key = 0;
req->ki_ctx = ctx;
@@ -547,25 +547,6 @@ struct kioctx *lookup_ioctx(unsigned long ctx_id)
return ioctx;
}
-static int lock_kiocb_action(void *param)
-{
- schedule();
- return 0;
-}
-
-static inline void lock_kiocb(struct kiocb *iocb)
-{
- wait_on_bit_lock(&iocb->ki_flags, KIF_LOCKED, lock_kiocb_action,
- TASK_UNINTERRUPTIBLE);
-}
-
-static inline void unlock_kiocb(struct kiocb *iocb)
-{
- kiocbClearLocked(iocb);
- smp_mb__after_clear_bit();
- wake_up_bit(&iocb->ki_flags, KIF_LOCKED);
-}
-
/*
* use_mm
* Makes the calling kernel thread take on the specified
@@ -796,9 +777,7 @@ static int __aio_run_iocbs(struct kioctx *ctx)
* Hold an extra reference while retrying i/o.
*/
iocb->ki_users++; /* grab extra reference */
- lock_kiocb(iocb);
aio_run_iocb(iocb);
- unlock_kiocb(iocb);
if (__aio_put_req(ctx, iocb)) /* drop extra ref */
put_ioctx(ctx);
}
@@ -1542,7 +1521,6 @@ int fastcall io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
spin_lock_irq(&ctx->ctx_lock);
aio_run_iocb(req);
- unlock_kiocb(req);
if (!list_empty(&ctx->run_list)) {
/* drain the run list */
while (__aio_run_iocbs(ctx))
@@ -1674,7 +1652,6 @@ asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
if (NULL != cancel) {
struct io_event tmp;
pr_debug("calling cancel\n");
- lock_kiocb(kiocb);
memset(&tmp, 0, sizeof(tmp));
tmp.obj = (u64)(unsigned long)kiocb->ki_obj.user;
tmp.data = kiocb->ki_user_data;
@@ -1686,7 +1663,6 @@ asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
if (copy_to_user(result, &tmp, sizeof(tmp)))
ret = -EFAULT;
}
- unlock_kiocb(kiocb);
} else
ret = -EINVAL;
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index d7f7eb669d0..4a36839f0bb 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -85,6 +85,10 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
struct nfs_delegation *delegation;
int status = 0;
+ /* Ensure we first revalidate the attributes and page cache! */
+ if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR)))
+ __nfs_revalidate_inode(NFS_SERVER(inode), inode);
+
delegation = nfs_alloc_delegation();
if (delegation == NULL)
return -ENOMEM;
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index f6b9eda925c..6bdcfa95de9 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -137,7 +137,8 @@ static int nfs_revalidate_file(struct inode *inode, struct file *filp)
struct nfs_inode *nfsi = NFS_I(inode);
int retval = 0;
- if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE) || nfs_attribute_timeout(inode))
+ if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR))
+ || nfs_attribute_timeout(inode))
retval = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
nfs_revalidate_mapping(inode, filp->f_mapping);
return 0;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 6922469d6fc..d4eadeea128 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -877,12 +877,10 @@ static int nfs_wait_on_inode(struct inode *inode)
sigset_t oldmask;
int error;
- atomic_inc(&inode->i_count);
rpc_clnt_sigmask(clnt, &oldmask);
error = wait_on_bit_lock(&nfsi->flags, NFS_INO_REVALIDATING,
nfs_wait_schedule, TASK_INTERRUPTIBLE);
rpc_clnt_sigunmask(clnt, &oldmask);
- iput(inode);
return error;
}
@@ -1226,10 +1224,6 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
loff_t cur_size, new_isize;
int data_unstable;
- /* Do we hold a delegation? */
- if (nfs_have_delegation(inode, FMODE_READ))
- return 0;
-
spin_lock(&inode->i_lock);
/* Are we in the process of updating data on the server? */
@@ -1350,7 +1344,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
nfsi->read_cache_jiffies = fattr->timestamp;
/* Are we racing with known updates of the metadata on the server? */
- data_unstable = ! nfs_verify_change_attribute(inode, verifier);
+ data_unstable = ! (nfs_verify_change_attribute(inode, verifier) ||
+ (nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE));
/* Check if our cached file size is stale */
new_isize = nfs_size_to_loff_t(fattr->size);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 3b33f94020d..a170450aadb 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -103,7 +103,9 @@ enum pid_directory_inos {
PROC_TGID_NUMA_MAPS,
PROC_TGID_MOUNTS,
PROC_TGID_WCHAN,
+#ifdef CONFIG_MMU
PROC_TGID_SMAPS,
+#endif
#ifdef CONFIG_SCHEDSTATS
PROC_TGID_SCHEDSTAT,
#endif
@@ -141,7 +143,9 @@ enum pid_directory_inos {
PROC_TID_NUMA_MAPS,
PROC_TID_MOUNTS,
PROC_TID_WCHAN,
+#ifdef CONFIG_MMU
PROC_TID_SMAPS,
+#endif
#ifdef CONFIG_SCHEDSTATS
PROC_TID_SCHEDSTAT,
#endif
@@ -195,7 +199,9 @@ static struct pid_entry tgid_base_stuff[] = {
E(PROC_TGID_ROOT, "root", S_IFLNK|S_IRWXUGO),
E(PROC_TGID_EXE, "exe", S_IFLNK|S_IRWXUGO),
E(PROC_TGID_MOUNTS, "mounts", S_IFREG|S_IRUGO),
+#ifdef CONFIG_MMU
E(PROC_TGID_SMAPS, "smaps", S_IFREG|S_IRUGO),
+#endif
#ifdef CONFIG_SECURITY
E(PROC_TGID_ATTR, "attr", S_IFDIR|S_IRUGO|S_IXUGO),
#endif
@@ -235,7 +241,9 @@ static struct pid_entry tid_base_stuff[] = {
E(PROC_TID_ROOT, "root", S_IFLNK|S_IRWXUGO),
E(PROC_TID_EXE, "exe", S_IFLNK|S_IRWXUGO),
E(PROC_TID_MOUNTS, "mounts", S_IFREG|S_IRUGO),
+#ifdef CONFIG_MMU
E(PROC_TID_SMAPS, "smaps", S_IFREG|S_IRUGO),
+#endif
#ifdef CONFIG_SECURITY
E(PROC_TID_ATTR, "attr", S_IFDIR|S_IRUGO|S_IXUGO),
#endif
@@ -630,6 +638,7 @@ static struct file_operations proc_numa_maps_operations = {
};
#endif
+#ifdef CONFIG_MMU
extern struct seq_operations proc_pid_smaps_op;
static int smaps_open(struct inode *inode, struct file *file)
{
@@ -648,6 +657,7 @@ static struct file_operations proc_smaps_operations = {
.llseek = seq_lseek,
.release = seq_release,
};
+#endif
extern struct seq_operations mounts_op;
static int mounts_open(struct inode *inode, struct file *file)
@@ -1681,10 +1691,12 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
case PROC_TGID_MOUNTS:
inode->i_fop = &proc_mounts_operations;
break;
+#ifdef CONFIG_MMU
case PROC_TID_SMAPS:
case PROC_TGID_SMAPS:
inode->i_fop = &proc_smaps_operations;
break;
+#endif
#ifdef CONFIG_SECURITY
case PROC_TID_ATTR:
inode->i_nlink = 2;
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index f3bf016d5ee..cff10ab1af6 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -91,6 +91,7 @@ static void *nommu_vma_list_start(struct seq_file *m, loff_t *_pos)
next = _rb;
break;
}
+ pos--;
}
return next;