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fs/9p: Writeback dirty data before setattr

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change file attribute can result in making the file readonly.
So flush the dirty pages before that.

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>
This commit is contained in:
Aneesh Kumar K.V 2011-02-28 17:04:11 +05:30 committed by Eric Van Hensbergen
parent f10fc50f1a
commit 3dc5436aa5
2 changed files with 8 additions and 0 deletions
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4
fs/9p/vfs_inode.c
View file

@ -999,6 +999,10 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
if (retval)
return retval;
}
/* Write all dirty data */
if (S_ISREG(dentry->d_inode->i_mode))
filemap_write_and_wait(dentry->d_inode->i_mapping);
retval = p9_client_wstat(fid, &wstat);
if (retval < 0)
return retval;

4
fs/9p/vfs_inode_dotl.c
View file

@ -459,6 +459,10 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
if (retval)
return retval;
}
/* Write all dirty data */
if (S_ISREG(dentry->d_inode->i_mode))
filemap_write_and_wait(dentry->d_inode->i_mapping);
retval = p9_client_setattr(fid, &p9attr);
if (retval < 0)
return retval;