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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-02-28 14:34:10 +0300
committerEric Van Hensbergen <ericvh@gmail.com>2011-03-15 17:57:42 +0300
commitf10fc50f1adaf40fdd5da6dd154ecb464b468e2f (patch)
tree254b9ea1aebb08b1bae37557aa7f7ea39b78d05c /fs/9p
parentc06c066a083aa0a336d6b2b1ed502dd0b8488ac7 (diff)
downloadlinux-f10fc50f1adaf40fdd5da6dd154ecb464b468e2f.tar.xz
fs/9p: call vmtruncate before setattr 9p opeation
We need to call vmtruncate before 9p setattr operation, otherwise we could write back some dirty pages between setattr with ATTR_SIZE and vmtruncate causing some truncated pages to be written back to server Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs/9p')
-rw-r--r--fs/9p/vfs_inode.c10
-rw-r--r--fs/9p/vfs_inode_dotl.c9
2 files changed, 8 insertions, 11 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 524d255a5748..2555776920ad 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -993,18 +993,16 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
if (iattr->ia_valid & ATTR_GID)
wstat.n_gid = iattr->ia_gid;
}
-
- retval = p9_client_wstat(fid, &wstat);
- if (retval < 0)
- return retval;
-
- v9fs_invalidate_inode_attr(dentry->d_inode);
if ((iattr->ia_valid & ATTR_SIZE) &&
iattr->ia_size != i_size_read(dentry->d_inode)) {
retval = vmtruncate(dentry->d_inode, iattr->ia_size);
if (retval)
return retval;
}
+ retval = p9_client_wstat(fid, &wstat);
+ if (retval < 0)
+ return retval;
+ v9fs_invalidate_inode_attr(dentry->d_inode);
setattr_copy(dentry->d_inode, iattr);
mark_inode_dirty(dentry->d_inode);
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 81bb4c2a0b82..bcd0ee2e549a 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -453,17 +453,16 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
if (IS_ERR(fid))
return PTR_ERR(fid);
- retval = p9_client_setattr(fid, &p9attr);
- if (retval < 0)
- return retval;
-
- v9fs_invalidate_inode_attr(dentry->d_inode);
if ((iattr->ia_valid & ATTR_SIZE) &&
iattr->ia_size != i_size_read(dentry->d_inode)) {
retval = vmtruncate(dentry->d_inode, iattr->ia_size);
if (retval)
return retval;
}
+ retval = p9_client_setattr(fid, &p9attr);
+ if (retval < 0)
+ return retval;
+ v9fs_invalidate_inode_attr(dentry->d_inode);
setattr_copy(dentry->d_inode, iattr);
mark_inode_dirty(dentry->d_inode);