We need to take the i_mutex before writing back the inode to ensure that the file doesn't change before calling DEALLOCATE. Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> --- fs/nfs/nfs42proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index 6e81749..10d8eb4 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -122,8 +122,8 @@ int nfs42_proc_deallocate(struct file *filep, loff_t offset, loff_t len) if (!nfs_server_capable(inode, NFS_CAP_DEALLOCATE)) return -EOPNOTSUPP; - nfs_wb_all(inode); mutex_lock(&inode->i_mutex); + nfs_wb_all(inode); err = nfs42_proc_fallocate(&msg, filep, offset, len); if (err == 0) -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
