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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-02-28 17:04:10 +0530 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2011-03-15 09:57:42 -0500 |
| commit | f10fc50f1adaf40fdd5da6dd154ecb464b468e2f (patch) | |
| tree | 254b9ea1aebb08b1bae37557aa7f7ea39b78d05c | |
| parent | c06c066a083aa0a336d6b2b1ed502dd0b8488ac7 (diff) | |
| download | op-kernel-dev-f10fc50f1adaf40fdd5da6dd154ecb464b468e2f.zip op-kernel-dev-f10fc50f1adaf40fdd5da6dd154ecb464b468e2f.tar.gz | |
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>
| -rw-r--r-- | fs/9p/vfs_inode.c | 10 | ||||
| -rw-r--r-- | fs/9p/vfs_inode_dotl.c | 9 |
2 files changed, 8 insertions, 11 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 524d255..2555776 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 81bb4c2..bcd0ee2 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); |
