From: Aneesh Kumar K.V Date: Mon, 28 Feb 2011 11:34:11 +0000 (+0530) Subject: fs/9p: Writeback dirty data before setattr X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3dc5436aa5719be029bbc2bef0e5cb0312e4ff88;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git fs/9p: Writeback dirty data before setattr change file attribute can result in making the file readonly. So flush the dirty pages before that. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Venkateswararao Jujjuri Signed-off-by: Eric Van Hensbergen --- diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 2555776920ad..8a2c232f708a 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -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; diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c index bcd0ee2e549a..67c138e94feb 100644 --- a/fs/9p/vfs_inode_dotl.c +++ b/fs/9p/vfs_inode_dotl.c @@ -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;