lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge branch 'devel' into for-linus

Browse Source
This commit is contained in:
Trond Myklebust
2009-04-01 13:28:15 -04:00
parent c09bca786f c69da774b2
commit cc85906110
39 changed files with 1197 additions and 864 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
fs/nfs/file.c
View File

@@ -64,11 +64,7 @@ const struct file_operations nfs_file_operations = {
.write = do_sync_write,
.aio_read = nfs_file_read,
.aio_write = nfs_file_write,
#ifdef CONFIG_MMU
.mmap = nfs_file_mmap,
#else
.mmap = generic_file_mmap,
#endif
.open = nfs_file_open,
.flush = nfs_file_flush,
.release = nfs_file_release,
@@ -141,9 +137,6 @@ nfs_file_release(struct inode *inode, struct file *filp)
dentry->d_parent->d_name.name,
dentry->d_name.name);
/* Ensure that dirty pages are flushed out with the right creds */
if (filp->f_mode & FMODE_WRITE)
nfs_wb_all(dentry->d_inode);
nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
return nfs_release(inode, filp);
}
@@ -235,7 +228,6 @@ nfs_file_flush(struct file *file, fl_owner_t id)
struct nfs_open_context *ctx = nfs_file_open_context(file);
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
int status;
dprintk("NFS: flush(%s/%s)\n",
dentry->d_parent->d_name.name,
@@ -245,11 +237,8 @@ nfs_file_flush(struct file *file, fl_owner_t id)
return 0;
nfs_inc_stats(inode, NFSIOS_VFSFLUSH);
/* Ensure that data+attribute caches are up to date after close() */
status = nfs_do_fsync(ctx, inode);
if (!status)
nfs_revalidate_inode(NFS_SERVER(inode), inode);
return status;
/* Flush writes to the server and return any errors */
return nfs_do_fsync(ctx, inode);
}
static ssize_t
@@ -304,11 +293,13 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
dprintk("NFS: mmap(%s/%s)\n",
dentry->d_parent->d_name.name, dentry->d_name.name);
status = nfs_revalidate_mapping(inode, file->f_mapping);
/* Note: generic_file_mmap() returns ENOSYS on nommu systems
* so we call that before revalidating the mapping
*/
status = generic_file_mmap(file, vma);
if (!status) {
vma->vm_ops = &nfs_file_vm_ops;
vma->vm_flags |= VM_CAN_NONLINEAR;
file_accessed(file);
status = nfs_revalidate_mapping(inode, file->f_mapping);
}
return status;
}
@@ -354,6 +345,15 @@ static int nfs_write_begin(struct file *file, struct address_space *mapping,
file->f_path.dentry->d_name.name,
mapping->host->i_ino, len, (long long) pos);
/*
* Prevent starvation issues if someone is doing a consistency
* sync-to-disk
*/
ret = wait_on_bit(&NFS_I(mapping->host)->flags, NFS_INO_FLUSHING,
nfs_wait_bit_killable, TASK_KILLABLE);
if (ret)
return ret;
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page)
return -ENOMEM;